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波纹管平衡式安全（WA42Y）适用于工作温度≤200℃存在不稳定背压或有毒、腐蚀性介质的设备或管路上，作为超压保护装置。连接法兰标准≤4MPa采JB/T6……94系列1。＞4MPa采JB/T……94系列2标准。
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WA42Y波纹管平衡式安全阀外形尺寸
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WA42Y波纹管平衡式安全阀连接尺寸：
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型号
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公称通径
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do
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D
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K
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g
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g1
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b
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f
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f1
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Z-ød
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DN'
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D1
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K1
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g3
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g2
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b1
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f'
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f1'
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Z1-ød1
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L
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L1
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≈H
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WA42Y-16
WA42Y-16P WA42Y-16R |
25
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16
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115
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85
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65
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16
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2
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4-14
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32
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140
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100
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78
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18
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2
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4-18
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110
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95
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378
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32
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20
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140
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100
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78
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18
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2
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4-18
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40
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150
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110
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85
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18
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3
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4-18
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115
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100
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378
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40
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25
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150
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110
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85
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18
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3
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4-18
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50
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165
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125
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100
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18
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3
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4-18
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120
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110
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406
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50
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32
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165
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125
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100
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20
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3
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4-18
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65
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185
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145
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120
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20
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3
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4-18
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135
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120
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450
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|
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65
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40
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185
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145
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120
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20
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3
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4-18
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80
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200
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160
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135
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20
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3
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8-18
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160
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140
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520
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80
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50
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200
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160
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135
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20
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3
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8-18
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100
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220
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180
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155
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22
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3
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8-18
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170
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135
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525
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100
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65
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220
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180
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155
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22
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3
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8-18
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125
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250
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210
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185
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22
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3
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8-18
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195
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175
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690
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125
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80
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250
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210
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185
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22
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3
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8-18
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150
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285
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240
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210
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24
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3
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8-23
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210
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190
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857
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150
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100
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285
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240
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210
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24
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3
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8-23
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175
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310
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270
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240
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26
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3
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8-23
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255
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230
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838
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200
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125
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340
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295
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265
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26
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3
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12-23
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250
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405
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355
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320
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30
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3
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12-26
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300
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260
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992
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WA42Y波纹管平衡式安全阀主要零部件材料：
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NO.
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零件名称
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WA42Y-C型材料
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WA42Y-P型材料
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WA42Y-R型材料
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1
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阀体
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WCB
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ZG1Cr18Ni8Ti,304
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CF8M
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2
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阀座
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2Cr13
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1Cr18Ni8Ti
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316
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3
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调节圈
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2Cr13
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1Cr18Ni8Ti
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0Cr18Ni12Mo2Ti
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4
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阀瓣
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2Cr13
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1Cr18Ni8Ti
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316
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5
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反冲盘
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2Cr13
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1Cr18Ni8Ti
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316
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6
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波纹管
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304
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304
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316
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7
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导向套
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2Cr13
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1Cr18Ni8Ti
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0Cr18Ni12Mo2Ti
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8
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阀盖
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ZG230-450
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ZG230-450
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ZG230-450
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9
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弹簧
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50CrVA
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50CrVA包覆氟塑料
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50CrVA包覆氟塑料
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