... to 72" 2)material:carbon steel,stainless steel,etc 3)standard:ANSI B16.5 4)WT:#150-#2500 5)API,ISO ... F43, A276 S32750,A705 631,632,A961, A484, etcAlloy steel(ASTM A694 F42,F46,F52,F56,F60,F65,F70, A182 F12 ... ,OHSAS18001 Occupational Health & Safety MangementSystem Certificate, acquired the license for manufacturing special pressure Pipline equipmentsfrom AQSIQ ,etcpackingin wooded cases or pallets,oras ...