Standards ANSI B16.9 / 16.28, ASTM A53/A106, API 5L, ASME B36.10M---1996, DIN2605 / 2615 / 2616, JIS P2311/2312 Material ASTM A106,A53GRB,A53-A,A106-A,A192,A226,A315-B,A106-B,A178-C,A210-A-1,A210-C,A333-1.6,A334-1.6,A333-7.9,A334-7.9,150M19,En46... Industrial process hot rolled,hot expanded,cold drawn,and hot galvanized Surface treatment Tran***rent oil, rust-proof black oil or hot galvanized Packing wooden case, pallet or as customers�requirement
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