Quality Pipe Flange API Flange Supplier Tianjin Dalipu Oil Country Tubular Goods Co., Ltd Base Info Standard：ANSI, DINType：Threaded Connection FlangeStructure：FlangesConnection：WeldingSealing Surface：RFManufacturing Way：ForgingOrigin：Tianjin China Description Pre：M6*70 Expansion Bolt Fixing Bolt Anchor Expansion Bolt Zinc Bolt Next：M6*80 Zinc Expansion Bolt Fixing Bolt Anchor Expansion Bolt
