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High steel grade L8013Cr material 3-1/2"inch tubing时间:2019-11-04 Specifications API 5CT oil tubing ,conforms to API Specification 5CT, 5B and other related standards, authorized to use the API monogram API 5CT oil tubing Contact:Jose liu Email:jose@dlpoctg.com Skype:jose@dlpoctg.com Tel:+86-18722585559 WeChat:18722585559 |