... Grade:20,20G,A179,A106 B,A192,Gr320 4.MOQ:1 Ton Brand name :WanjiWebsite:www.wjpipe.comBusiness type:Manufacture and ... exporterproduct NameBoiler seamless steel pipeSpecification Range20mm-820mm 1/2"- 32"Steel Grade20,20G,A 179,A106 B,A192 ... -1999,GB5310-1995,ASTM A106,ASTM A179ASTM A192,DIN 1629-1984,DIN 17175,BS3059.1-1987Application:structure steel pipe,boiler pipe,petroleum,gas ...