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OCTG
Steel Pipe for Offshore Service
Line Pipe
Steel pipe for pressure vessel
Pipes for Construction Machinery
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Jinan Joint Professional Pipe Co., Ltd.
Beijing Baoling Joint Professional Pipe Co., Ltd.
Hunan Baoling Joint Professional Pipe Co., Ltd.
Joint Petroleum & Pipe Supply (RUSSIA)Inc.
Joint Petroleum & Pipe Supply (USA)Inc.
Joint Petroleum&Pipe Supply (Canada) Inc.
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