28inch welded elbow STD

28inch welded elbow STD product specifications PRODUCT NAME welded elbow MATERIAL Cr5Mo,12Cr1MoV,10CrMo910,15CrMo,12Cr2Mo1,A335P22,St45.8Ⅲ, A10bB A234-WPB.A420-WPL6.A234-WP12.A234-WP11.A234-WP5.A403-WP304.A403-WP304L.A403-WP316.A403-WP316L. SIZE 1/2"-48",DN15-DN1200 PRESSURE Sch80-Sch160,XXS STANDARDS ISO. ANSI. JIS. DIN GB/T12459,GB/T13401,ASME B16.9,SH3408, SH3409,HG/T21635,HG/T21631,SY/T0501 USE Petroleum, chemical, power, gas, metallurgy, shipbuilding, construction, etc