Application1、face To Face Is According To Bs51632、flange Drilled Is According To Bs4504/en1091-23、nominal Pressure Pn10/pn16testdiameter:dn40-dn1200connection:flangeworking ...
National University Science Park, West Third Ring Road, Zhengzhou, Henan, China National University Science Park, West Third Ring Road, Zhengzhou, Henan, China
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