The common materials:20#and Q235.
Technical Standard:API 5LB,ASTM A 106 GR.B,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-pressurre boiler pipe GB3087-1999,
Fluid pipe GB/t8163-1999,structural pipe GBT8162-1999
hydraulic support pipe GB/T17396-1998
Application:Apply for industry equipment installment in bolier industry,chemical industry and electricity power industry
Oil casing (API SPEC5CT);oillinepipe(API SPEC,GB/T9711.1,GB/T9711.2);seamless steel tube for oil well collar piping(Q/CG70)