GB/T 9711.3-1997(iso 3183-3)
GB/T 9711.2-1997(iso 3183-2)
GB/T 9711.1-1997(iso 3183-1)
used for petrol,natural gas and coal bed gas exploitation engineering.main steel grades:H44,J55,K55,M65,N80-1,N80Q,L80,C90,T95,P110,Q125,FS140
used for petrol,natural gas and coal bed gas exploitation engineering
API: | SPECIFICATION 5D |
Model Number: | H40,J55,K55,M65 |
Brand Name: | TJSYS |
Place of Origin: | China |
Secondary Or Not: | Is Secondary |
Grade: | API J55 |
Standard: | GB |
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