... SCHXXS 5.Certificate:API/EN/ISO galvanized steel pipe&tube 1. galvanized steel pipe&tube 2.high quality,best price 3. ... ,GB30872)Oil pipe:GB99483)High-pressure seamless tube:GB64794)Hydraulic pillar tube:GB/T173965)Shipping pipe:GB/T53126)Pipe ... customers the pipe one-stop service. Material drain: stainless steel, alloy steel, carbon steel, titanium (Ta2), copper, aluminum, Monel, Hastelloy, etc.. ...