天津阀门
NOTE:The diameter of stem is 10mm when the top flange connection is key type. It is 12.6mm when. the connection is square or double "D"type. ... Face To Face Is According To, ISO 5752. API 609. DIN 3202 ... Dongli District Tianjin China. Butterfly Valve | Check Valve | Gate Valve | Ball Valve | Other Valve Privacy protection.
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guanghui-valve's website is guanghui-valve.com