Wenzhou supply: duplex stainless steel flanges, factory direct flange Hongyuan pipe industry production: flat welding flange, stainless steel flange socket flange, forged flange (Contact: Feng Hongmei Contact: 15,932,713,817, QQ: 1,763,757,819 pipes of various materials: 304,304 L, 316,316 L, 321,310 S ,18-8, 16Mn, 20 #, 20G, 12Cr1MoVG, P91, 10CrMo910, 15CrMo F51, etc.) The company mainly engaged in product quality: has passed ISO9001 international certification, pressure vessel manufacturing license. 2 Finish: rust-proof black paint, anti-rust varnish, transparent anti-rust oil, hot-dip galvanizing, cold galvanizing, 3PE coating, epoxy coating. Package: fumigation wooden box, tray in accordance with customer requirements for special packaging standards: ASTM A240/A240M ASTM A480, and A167, GB4237 Flange: welding, welding with a neck, socket welding, France blue cover, 5. forgings: a variety of standard and non-standard forgings the demand or drawings made; standard: ASTM A182; fittings: three-way, four-way, elbow, the size of the first class, specification: DN15-DN1800 PN2 .5-32Mpa (150LB-3000LB); standards: GB12459, GB/T13401, ASTM B16.9, ASTM B16.28 7. products have been used in the petrochemical, aerospace industry, Hydro Nuclear refining shipbuilding, onshore and offshore oil and gas, pulp and paper, chemical fiber, machinery and equipment manufacturing industry and change heat exchangers and other products, highly recognized by customers.