美國(guó)ASCO電磁閥SCG551A017MS特價(jià)銷(xiāo)售
美國(guó)ASCO電磁閥SCG551A017MS特價(jià)銷(xiāo)售
美國(guó)asco電磁閥各種規(guī)格型號(hào)齊全，二位二通電磁閥：8210系列，8262系列，8263系列，238系列，106系列107系列。二位三通電磁閥8316系列先導(dǎo)式，8320系列直動(dòng)式。二位四通電磁閥：8342系列直動(dòng)式，8344系列先導(dǎo)式，8345系列先導(dǎo)緊湊型。二位五通：551系列。本安型防爆電磁閥：2位2通，2位3通，2位4通。低功耗電磁閥，手動(dòng)復(fù)位電磁閥：8015系列，8025系列，8037系列8308系列，8310系列，8327系列，8047系列，8408系列，8410系列。精密微型閥：al系列，am系列，458系列通用閥，190，330系列隔離型閥，s系列夾緊閥。德國(guó)topair電磁閥適合小口徑流量的工礦條件，還有鍛壓機(jī)床用的安全雙聯(lián)電磁閥，質(zhì)量可靠，使用壽命長(zhǎng)的特點(diǎn)。
上海心雨機(jī)電設(shè)備有限公司
聯(lián)系人:陳飛(銷(xiāo)售)
電話(huà):021-60512090，
傳真:021-55032832
在線(xiàn)QQ：1536539934 1277069118 840441766
網(wǎng)址:http://m.dialrefinished.com
郵件:1536539934@qq.com
手機(jī):18717727483
為了控制各種液態(tài)或氣態(tài)流體和滿(mǎn)足各種應(yīng)用的需要，asco-joucomatic在電磁閥和機(jī)械閥方面，提代了一個(gè)廣泛的選擇，其中流體可以是易燃、易爆介質(zhì)或腐蝕性介質(zhì)。壓力可達(dá)到150巴，溫度可以從-50到300�？趶街饕袕�1/8英寸到6英寸，操作形式有常閉型，常開(kāi)型和通用型的2，3，4，5通電磁閥。
? 通用電磁閥
* 熱水和蒸汽電磁閥
* 用于真空 系統(tǒng)的磁磁閥
* 用于燃j燒系統(tǒng)的電磁閥（介質(zhì)是油氣和燃料油）
* 各種工程用電磁閥
* namur電磁閥
* 用于除塵系統(tǒng)的電磁閥
* 用于低溫系統(tǒng)的電磁閥
* 燃料分配電磁閥（用于各種油料加油機(jī)）
* 防水錘設(shè)計(jì)的緩慢關(guān)閉式電磁閥
* 比例電磁閥
* 醫(yī)藥和分析領(lǐng)域用電磁閥
* 用于核電廠的電磁閥
* 防爆電磁閥
我司供應(yīng)asco全系列產(chǎn)品，具體型號(hào)如下
NF8551B417MO 24VDC
NF8551B401MO 24VDC
1 EFG551H401MO 24VDC
2 EFG551H401MO 220/50 240/60
3 SCG551A001MS 230/50-60
4 SCG551A002MS 230/50 (55
5 SCG551A001MS 24VDC
6 SCG551A002MS 24VDC
7 EFG551A001MS 24VDC
8 EFG551A001MS 220/50
SCG551A001MS 24VDC
9 SCG551A017MS 24DC VALVE
10 SCG551A017MS 220/50 VALVE
11 SCG551A017MS 115/50 VALVE
12 SCG353A043 230/50
13 SCG353A044 230/50
14SCG353A043 24DC 15 SCG353A044 24DC
16 SCXE238A002 TPL: 24017 230/50, VALVE
17 SCXE238A010 TPL: 24029 230/50-60, V
18 SCXE238A009 TPL: 24029 24DC, VALVE
19 SCXE238A007 TPL: 24029 230/50-60, V
電磁閥 SCG531B001MS 24VDC
電磁閥 SCG551A005MS 230/50
電磁閥 SCG551A005MS 24VDC
電磁閥 SCG551A017MS 24VDC
電磁閥 SCG551A018MS 24VDC
電磁閥 SCG551A001MS 230/50
電磁閥 SCG551A001MS 230/50
電磁閥 SCG551A001MS 24VDC
電磁閥 SCG551A002MS 24VDC
電磁閥 SCG551A002MS 230/50
電磁閥 EFG551H401MO 24VDC
電磁閥 EFG551H401MO 220/50
電磁閥 EFG551A001MS 220/50
電磁閥 EFG551A001MS 24VDC
電磁閥 SCG353A043 230/50
電磁閥 SCG353A043 24VDC
電磁閥 SCG353A044 230/50
電磁閥 SCG353A047 220/50
電磁閥 SCG353A047 24VDC
電磁閥 SCG353A051 230/50
電磁閥 SCG353A051 24VDC
電磁閥 SCG531D001MS 230/50
電磁閥 SCG531D001MS 24VDC
電磁閥 8210G009 220/50
電磁閥 EF8262G212 115/50
電磁閥 8262G014 24VDC
電磁閥 8210G004 24VDC
電磁閥 8223G027 24VDC
電磁閥 8263G205LT 220/50
電磁閥 8316G066 24VDC
電磁閥 8320G174 220/50
電磁閥 8320G174 24VDC
電磁閥 8320G174 110V/50HZ
電磁閥 EF8320G174 220VAC
電磁閥 EF8320G174 24VDC
電磁閥 EF8320G176 24VDC
電磁閥 EF8320G176 220VAC
電磁閥 8320G184 220/50
電磁閥 8320G184 24VDC
電磁閥 EF8320G184 220VAC
電磁閥 EF8320G184 24VDC
電磁閥 8320G186 24VDC
電磁閥 8320G186 220/50
電磁閥 EF8320G186 24VDC
電磁閥 EF8320G186 220/50
電磁閥 EF8320G203 24VDC
電磁閥 EF8314G054 24VDC
電磁閥 WT8551A001MS 220VAC
電磁閥 NF8327B102 24VDC
電磁閥 VR7B2YAA2NGA
電磁閥 EF8300D061U 220/50
電磁閥 EV8316G84V 220/50
電磁閥 8344G072 24VDC
電磁閥 NF8551A421 24VDC
電磁閥 NFB327A002 24VDC
電磁閥 52100001 24VDC
電磁閥 52100008 230/50
電磁閥 52100004 230/50
電磁閥 52000004
電磁閥 52000005 24VDC
電磁閥 52100005 24VDC
電磁閥 52000380 24VDC
電磁閥 18900001 230/50
電磁閥 18900001 24VDC
電磁閥 54191023
電磁閥 54292023
電磁閥 35500335
電磁閥 35500333
電磁閥 35500341
電磁閥 43004869
電磁閥 35500347
電磁閥 10700001X TPL:24029的線(xiàn)圈 43005413 24VDC
電磁閥 238610-058-D 220/50
電磁閥 099257-006-D
電磁閥 238710-006-D 24VDC
電磁閥 238610-158-D
電磁閥 SCE210C094 220/50
電磁閥 EF8210G009 24VDC
電磁閥 8320G172MO 220/50
電磁閥 JKH8344G74MO 110/50
電磁閥 EFHC8210C013 125VDC
型號(hào)
8030G064 DC24V
8308A40 DC24V 建議替代;8308B040
EF8210G227 DC24V
NF8551A321 24VDC
8320G001 DC24V
8320G184 DC24V
NBXB307C078 TPL:21945 24DC
SXG11OA051 T.P.L:22417 24DC
EF8327G41 220V 線(xiàn)圈：276002-050-D
EF8210G34 220V 線(xiàn)圈：238614-058-D
EF8401B202M 標(biāo)壓
SCG353A051
NKE374A002 AC230/50
EF8314G300 AC220V
NF8327B112 DC24V
SCG551A002MS DC110V
SCGE210C034 DC24V
WSNFB327A102
NF8344A070
8210G002 DC24V
SCG353A401M0 DC24V
EF8344G74
EF8320G184 AC220V
8215G30 AC110V
8320G200 DC24V
SCE238A002
SCE238A004
SCE238A005
SCG238G018
8262G086 AC220V
8262G202 AC220V
VR7C2YAA2NGA
VR7C2YAH2NGA
8320G202 DC24V
8238S414 220/50HZ
SCB202C061V
8223G005 AC220V
8320G202 DC24V
EF8210G78 AC220V
EF8210G100 AC220V
EF8210G176 AC220V
8210G30 AC110
EF8320G172 AC24V
EF8210G94 AC220V
EF8320G186
EF8210G34
VR7B2YAAZNGA
EF8320G174
EF8320B202
EF8320B184
E290A025
E290B010
E290A016
E290A021
E290B005
EF8342G001
8262G232
8210G34
EF8342G020
K302143
SA120 T825510
C113444
43004422
SCXE353.060
MPC-089 238614-032-D
52000008
EFG552A417MO
43004663
35500344
52100004
88130403
35500349
34203086
SC8551A422
VR7C6YAA2NGA
8344G074
8320G192
8262G022
238210-058-D
SCG238C017
SCE238A005
8210G007
8320G186
EF8320G202
EFG551H417
EF8342G502
8316G64
238314-006-D
EF8210G004
EF8342G001
SCG353.052
EFG353.052
8320G174
EF8344G056
SCE210D009 AC220
SCE210D009 DC24V
238414-032-D
WSNFETB327A102
EF8210G022
EF8316G001
EF8344G80M0
8223G10
833-8220035-24V
NK8551A421
EFG551H401M0
52100001
8320G215
8344G27-M0
42004869
8316G66
8316G76
52100008
JKP8342G0D3PMS
HT8316G074
8210G54
8210G101
8210G022
SCG551A006MS
SCG551A005MS
8320G176
EF8316G54
SCB327A001
238614-158-D
238610-058-D
WBIS8314A300
238410-058-D
8210B59
8210G56
NFB327A001
8210G001
8210G002
8210G003
8210G004
8210G006
8210G007
8210G008
8210G009
8210G011
8210G012
8210G013
8210C013
8210G014
8210D014
8210G015
8210D018
8210G018
8210B026
8210G026
8210G027
8210G032
8210D032
8210G033
8210G034
8210G035
8210G036
8210G037
8210G038
8210G030
8210G054
8210B054
8210G055
8210B055
8210G056
8210B056
8210B057
8210B058
8210B059
8210G073
8210G078
8210G087
8210G088
8210G089
8210D089
8210G093
8210G094
8210G095
8210G100
8210G101
8210103
8210G104
8210104
8210G104
8262G001
8262G002
8262G006
8262G007
8262G012
8262G013
8262G014
8262G015
8262G019
8262G020
8262G022
8262G031
8262G035
8262G036
8260G038
8262G080
8262G090
8262G091
8262G092
8262G093
8262G094
8262G130
8262G138
8262G142
8262G148
8262G152
8262G200
8262G206
8262G208
8262G210
8262G212
8262G214
8262G220
8262G226
8262G232
8262G260
8262G261
8262G262
8262G263
8262G264
8262G265
8263G002
8263G200
8263G206
8263G210
8263G330
8263G331
8263G332
8263G333
SCE238A001
SCE238A002
SCE238A003
SCE238A004
SCE238A005
SCE238A006
SCE238A007
SCE238A008
SCE238A009
SCE238A010
SCE238A016
SCE238A017
SCE238A018
SCG238A019
SCG238A020
SCG238A021
SCG238C018
SCXE238A007
SCXE238A002
SCXE238A001
SCG238A048
10600001
10600058
10600242
10600003
10600243
10600186
10600187
10600257
10600189
10600258
10600135
10600136
10600004
10600064
10600244
10600006
10600245
10600191
10600192
10600259
10600194
10600260
10600142
10600143
10700206
10700207
10700208
10700209
10700210
10700211
10700001
10700124
10700003
10700077
10700004
10700130
10700006
10700101
8210G093HW
8210G001HW
8210G002HW
8210G009HW
8210G094HW
8210G095HW
8221G001HW
8221G003HW
8221G007HW
8221G009HW
8221G011HW
8221G013HW
8221G015HW
8221G021HW
8221G023HW
8221G025HW
8221G027HW
8221G029HW
8221G031HW
8221G033HW
8221G035HW
8263G052
8263G058
8263G053
8263G059
8263G300
8263G301
8263G304
8263G305
8263G306
8263G308
8263G318
8263G319
8263G320
8263G321
8222G068
8222G070
8222G064
8222G074
8222G001
8220G019
8222G093
8222G066
8222G076
8222G047
8222G094
8222G002
8220G003
8222G021
8222G060
8222G087
8222G062
8222G088
8222G095
8220G005
8220G023
8222G003
8222G049
8222G005
8220G007
8222G089
8222G004
8220G025
822299
8220G009
8220G009
8220G027
8220G011
8220G029
8220G013
8220G031
8220G015
8220G033
8267G001
8267G003
8267G005
8267G007
8267G017
8267G019
8267G009
8267G011
8267G013
8267G015
8267G021
8267G023
8220G071
8220G091
8220G073
8220G093
8220G075
8220G095
8220G077
8220G097
8220G079
8220G099
8220G081
8220G101
8220G083
8220G103
8220G085
8220G105
8223G021
E290A384
E290A385
E290A286
E290B010
E290B011
E290A016
E290A017
E290A642
E290A020
E290A021
E290A482
E290A024
E290A025
E290A485
E290A487
E290A488
E290A393
E290A394
E290B084
E290A395
E290B053
E290B054
E290A059
E290A060
E290A646
E290A063
E290A064
E290A073
E290A074
E290A075
E290A076
E290A502
E290A077
E290A078
E290A503
E290A504
E290A505
E290A390
E290A391
E290B037
E290B038
E290A039
E290A136
E290A040
E290A041
E290A041
E290A042
E290A043
E290A623
E290A399
E290A400
E290B080
E290A401
E290B081
E290A082
E290A137
E290A495
E290A067
E290A068
E290A498
E290A500
E290A501
E290A387
E290A388
E290B027
E290A389
E290B028
E290B029
E290A030
E290A031
E290A032
E290A033
E290A489
E290A034
E290A035
E290A490
E290A491
E290A492
E290A396
E290A397
E290B070
E290A398
E290B071
E290B072
E290A083
E290A083
E290A084
E290A085
E290A086
E290A625
E290A392
E290A045
8315G002
8315G003
8315G034
8315G035
8316G014
8316G016
8316G024
8316G026
8316G034
8316G044
8316G046
8316G054
8316G056
8316G064
8316G066
8316G074
8316G003
8320G003
8320G013
8320G015
8320G017
8320G027
8320G029
8320G031
8320G041
8320G043
8320G045
8320G047
8320G049
8320G051
8320G053
8320G055
8320G083
8320G087
8320G130
8320G172
8320G174
8320G176
8320G178
8320G132
8320G136
8320G140
8320G142
8320G146
8320G182
8320G186
8320G188
8320G192
8320G194
8320G196
8320G198
8320G201
8320G203
8320G204
8320G205
8342G001
8342G020
8342G022
8342G701
8342G703
8342G720
8342G722
8344G0
8344G027
8344G029
8344G031
8344G044
8344G050
8344G054
8344G056
8344G070
8344G072
8344G074
8344G076
8344G078
8344G080
8344G082
8345G001
EV8345G081
8342G003P
WBIS8262A320
WBIS8262A386
WBIS8223A323
WBIS8223A303
WBIS8314A300
WBIS8314A301
WBIS8223A310
WBIS8314A301
WBIS8316A381V
WBIS8316A302
WBIS8316A382V
WBIS8316A303
WBIS8316A304
WBIS8316A384V
WBIS8316A374
WBIS8316A334
WBIS8317A307
WBIS8317A308
WBIS8345A301
WBIS8345A308
WBIS8344A370
WBIS8344A372
WBIS8344A376
WBIS8344A378
WBIS8344A344
WBIS8344A380
WBIS8344A382
WBIS8344A354
WBIS8344A356
WBIS8551A301
WBIS8551A388
WBIS8551A302
WBIS8551A389
8262G320
8223G323
8223G303
8262G386
8223G310
8314G300
8314G301
8316G301
8316G302
8316G304
8316G374
8316G334
EV8316G381V
EV8316G382V
EV8316G384V
8317G307
8317G308
8345G301
EV8345G381
8344G370
8344G372
8344G374
8344G376
8344G378
8344G344
8344G380
8344G382
8344G354
8344G356
EF8344G072MO
8015B201
8015B202
8015B203
8015B204
8015B205
8015B206
8015B207
8015B208
8015B209
8015B210
8015B212
8015B213
8015B214
8015B215
8015B216
8015B217
8015B218
8015B219
8015B220
8015B221
8015B222
8015B223
8015B224
8015B225
8015B226
8025B201
8025B202
8025B203
8025B204
8025B205
8025B206
8025B207
8025B208
8025B209
8025B210
8025B212
8025B213
8025B214
8025B215
8025B216
8025B217
8025B218
8025B219
8025B220
8025B221
8025B222
8025B223
8025B224
8025B225
8025B226
8025B211
8015B211
8308B40
8308C41
8308C42
8308C43
8308A50
830844
830845
830846
830844R
830845R
830846R
8308A11
830847
8310B40
8310C41
8310C42
8310C43
8310C44
8310A50
831044
831045
831046
831044R
831045R
831046R
8310A11
831047
803714
8037A8
8037A10
803712
8327G21
EV8327G22
8327G31
EV8327G32
8227G33
EV8327G35
EV8327G042
8408B006
8408B007
8408A008
8408A010
8410B006
8410B007
8410A008
8410A009
8410A010
8047A001
8047A002
SCG353A043
SCG353A044
SCG353.052
SCG353.053
SCG353A047
SCG353A050
SCG353A051
SCG353.060
SCG353A065
E353A200
E353A201
E353A100
E353A101
G353A041
G353A042
G353A045
G353.055
G353.056
G353A046
G353A048
G353A049
G353.058
G353A063
S10407-Z031A
S10408-Z031A
S10409-Z031A
S10410-Z031A
S10506-Z530A
S10608-Z130A
S10609-Z130A
S20404-Z031A
S20405-Z031A
S20407-Z031A
S20501-Z530A
S20506-Z530A
S20605-Z130A
S20606-Z130A
S30506-Z031A
S30507-Z031A
S30508-Z031F
S30601-Z530A
S30705-Z130A
S10804-A070E
51900001
51900002
51900003
51900004
51900004
51900005
51900006
51900007
51900008
51900009
51900010
51900011
51900012
51900126
51900127
51900128
51900129
51900087
51900088
51900089
51900090
88130401
88130402
88130403
88143567
88143580
88135525
52000214
52000215
52000216
52000213
52000194
52000195
52000196
52000193
52000210
52000211
52000212
52000209
52000190
52000191
52000192
52000189
52000386
52000387
52000388
52000002
52000003
52000004
52000001
52000001
52000006
52000007
52000008
52000010
52000011
52000012
52000005
52000126
52000127
52000128
52000129
52000087
52000088
52000089
52100002
52100003
52100004
52100001
52100006
52100007
52100008
52100005
52100010
52100011
52100012
52100009
52100126
52100127
52100128
52100129
52100087
52100088
52100089
52100090
35500149
30400001
30400004
8135526
88135532
SCG531A001MS
SCG531A002MS
SCG531B001MS
54191023
54191024
54191025
54191026
54191027
54291025
54291026
54291027
54291024
54291023
54391023
54391024
54391025
54391026
54391027
54191028
54291030
54391029
54191029
54292029
54391030
54191006
551A105
552A105
553A105
551A106
552A106
553A106
551B405
551H405
551B305
551H305
552A405
552G405
552G305
552A305
553A405
553G405
553A305
553G305
551B406
551H406
551B306
551H306
552A406
552G406
552G306
552A306
553A406
553G406
553A306
553G306
SCG551A001MS
SCG551A001MSM
SCG551A002MS
SCG551A002MSM
NFG551A401MS
NKG551A201MS
PVG551A401MS
PVG551A301MS
PVG551A001MS
PVG551A201MS
EMG551A401MS
EMG551A301MO
EKG551A201MS
ISSCG551A301MO
WPISG551A301MO
ISSCG551A201MO
EFG551G401MS
NFG551A402MS
NKG551A202MS
PVG551A402MS
PVG551A302M0
PVG551A002MS
EMG551A402MS
EMG551A302MO
EKG551A202MO
WPISG551A302MO
ISSCG551A302MO
ISSCG551A202MO
EFG551G001MS
WSNFB551A309
NFG551A409MO
NFG551A410MO
SCG551B401MO
SCG551A017MS
EFG551B417
EFG551H401MO
WSNFB327A102
NFB307B005V
NF8327B022
WSNF8327B102
NFB327A002
NF8327B001
WSNF8324B002
EV8327G042
WT8551A001MS
NF8327B112
HT8316G074
HB8342G0MS
NF8327B015U
MP-C-089 238614-153-D
MP-C-089 2386714-006-D
MP-C-089 238510-006-D
MP-C-089 238610-158-D
MP-C-089 238614-158-D
MP-C-080 238610-058-D
551A407
551H407
551A307
551G307
551A408
551G408
551A308
551G308
551C507
551G508
551A413
551G413
551A313
551G313
551A414
551G414
551A314
551G314
551A213
551A214
551A005
552A005
553A005
551A006
552A006
553A006
551A205
552A205
553a205
551C505
552A505
553A505
551A419
551G419
551A319
551G319
551A420
551G420
551A320
551G320
551C519
551C520
551A421
551G421
551A321
551G321
551A422
551G422
551A322
551G322
551A221
551A222
551A409
551G409
551A309
551G309
551A410
551G410
551A310
551G310
551A209
551G209
551A403
551G403
551A302
551G302
551A404
551G404
551A304
551G304
551C503
551C504
551A017
552A017
553A017
551A018
552A018
553A018
551B417
551H417
551B317
551H317
552A417
552G417
552A317
552G317
553G417
553A417
553A317
553G317
551A067
552A067
553A067
551A068
552A068
553A068
551B418
551H418
551B318
551H318
552A418
552G418
552A318
552G318
553A418
553G418
553A318
553G318
551B467
551H467
551B367
551H367
EF8320G186
SCG553A017MS
SCG551A005MS 230/50
SCG551A005MS 24VDC
SCG551A001MS 230/50
SCG551A001MS 24VDC
SCG551A002MS 24VDC
SCG551A002MS 230/50
EFG551H401MO 24VDC
EFG551H401MO 220/50
EFG551A001MS 220/50
EFG551A001MS 24VDC
SCG353A043 230/50
SCG353A043 24VDC
SCG353A044 230/50
SCG353A047 220/50
SCG353A047 24VDC
SCG353A051 230/50
SCG531D001MS 230/50
SCG531D001MS 24VDC
EF8262G212 115/50
8262G014 24VDC
8210G004 24VDC
8223G027 24VDC
8263G205LT 220/50
8316G066 24VDC
8320G174 220/50
8320G174 24VDC
EF8320G174 220VAC
EF8320G174 24VDC
EF8320G176 24VDC
EF8320G176 220VAC
8320G184 220/50
8320G184 24VDC
EF8320G184 220VAC
EF8320G184 24VDC
8320G186 24VDC
8320G186 220/50
EF8320G186 24VDC
EF8320G186 220/50
EF8320G203 24VDC
EF8320G203V 24VDC
EF8314G054 24VDC
WT8551A001MS 220VAC
NF8327B102 24VDC
WSNF8327B102 24VDC
VR7B2YAA2NGA
NFB320B174 24VDC
8344G072 24VDC
52100001 24VDC
52000001 24VDC
52100008 230/50
52000008 230/50
52100004 230/50
52000004
52000005 24VDC
52100005 24VDC
52000380
18900001 230/50
18900001 24VDC
54191023
54292023
35500335
35500333
35500341
43004869
43004886
35500347
10700001X TPL:24029的線(xiàn)圈43005413 24VDC
238610-058-D 220/50
EF8210G004 24VDC
099257-006-D
238710-006-D 24VDC
238610-158-D
EF8262G22 24VDC
8320G172MO 220/50
JKH8344G74MO 110/50
EFHC8210C013 125VDC
SCE210B154，210系列美國(guó)ASCO電磁閥 ASCO電磁閥，ASCo防爆電磁閥，ASCO脈沖電磁閥，ASCO脈沖除塵閥，ASCO隔爆電磁閥，ASCO線(xiàn)圈，ASCO閥體，ASCO維修包
SCE210B154，210系列美國(guó)ASCO電磁閥 ASCO電磁閥，ASCo防爆電磁閥，ASCO脈沖電磁閥，ASCO脈沖除塵閥，ASCO隔爆電磁閥，ASCO線(xiàn)圈，ASCO閥體，ASCO維修包
SCE210B154，210系列美國(guó)ASCO電磁閥 ASCO電磁閥，ASCo防爆電磁閥，ASCO脈沖電磁閥，ASCO脈沖除塵閥，ASCO隔爆電磁閥，ASCO線(xiàn)圈，ASCO閥體，ASCO維修包