... of carbon steel elbows SIZE: SCH 20--SCH 160 Material: ASTM 106 BR.B, A53, AISI B16.9, B36.1, DIN2448 Name: Carbon steel ... ASME GB, SH,HG, MSS,JIS,DIN, APIMaterial: Carbon Steel ASTM A234WPB, WPC ;ASTM A420 WPL9,WPL3,WPL6A; ... 37.2 Packaging: Wooden Cases, wooden or steel pallet plastic bag or as per customers requirementQuality: ... . All the production process are made under the ISO9001:2000 strictly.