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The steel grades of common oilfield API-5CT casing pipe include J55, K55, N80-1, N80Q...
standard:API SPEC 5CT, API SPEC 5D API SPEC 5L steel Grade:J55 K55 N80-1 N80-Q N80-...
For the safety of frozen semen, please pay attention to the following points when usi...
Simmental cattle are an excellent breed of cattle. Livestock farmers will buy Simment...
GB/T 5310 specification grades 15crmog steel pipe,12cr1movg tube,20g steel pipe,12cr2...
Semi-automatic peanut butter filling machine Packaging machines in the fierce ma...
seamless Oil casing and drill pipe API 5L Pipe Sch40 Pipe Oil And Gas Steel Well Casi...