... ,Boiler pipe 2.OD:20mm--820mm, 1/2"--32" 3.Steel 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 ...