SUPPLY SEAMLESS STEEL PIPE
THE COMMON MATERIALS:20#,Q345.
TECHNICAL STANDER:API5L B,ASTM A106 GRB ,ASTM A53 GR B;HIGH-PRESSURE BOILER PIPE GB5310-1995,SPECIAL PIPE FOR FERTILIZER MAKING GB6479-2000,PIPE FOR PETROLEUM CRACKING GB9948-2000,LOW-AND MEDIUM-PRESSURE LOILER PIPE GB3087-1999,FLUID PIPE GB/T8163-1999,STRUCTURAL PIPE GB/T8162-1999 AND HYDRAULIC SUPPORT PIPE GB/T17396-1998. |