... ,ASTM-A106,ASTM-A53,SY5037-2000,GB/T5711.1-1997MaterialX42,X52,X60,X65,X70,Q235,Q345,10 ... BS EN 10025 / BS EN 10217 / BS6363JIS : JIS G 3444-2006 / JIS C 8305-1999ASTM : ASTM A 106- ... / API 5L / API5DPGB : GB /T 9711.1-1997 GB /T 9711.3-2005 GB /T 8163Material 20# 45#API J 55/API ... bulkBundledAccording to customer‘s requestsPayment L /C , T/TWe ensure a).Professional manufacturers of steel products with ...