Introduce :
Standard: GB 3087-1999,GB/T 8163-1999,GB/T 8162-1999,ASTM A106-2006,ASTM A53-2007,API 5L,GB,ASTM,API,GB 3087-1999,GB/T 8163-1999,GB/T 8162-1999,-2007,ANSI B36.10M-2004,
Grade: 10#,20#,16Mn,A53(A,B),A106(B,C),API J55,API K55,Q235,Q345,10#-45#,A53-A369,API J55-API P110,Q195-Q345,API J55,API K55,API N80,API L80,API P110,API J55-API P110
Location:
China