16 Years
5.8M / 6M Grade A & B Type E ASTM A-53 GB Oil, Drill Seamless Steel Pipes / Pipe As per ASTM A-53 Type E. Grades A & B Pipe, ISO4394/I-1980(E) , GB8713, GB/T9711, GB/T8162 API SPEC 5L. Length 5.8M /6M ...
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