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标题:Forge steel NPT、SW Check valve
正文:
Forge steel NPT、SW Check valve Technical StandardDesign standard：API 602、BS5352、ASME B16.34Connecting size：ASME B1.20.1、ASME B16.11Inspection and test：API598Main Size and Weight of Forge steel NPT、SW Check valveCLASS 150~800CLASS 900~1500
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