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OTCG

Detailed parameters ：

Application	Certificates	Grade/Material	Size Range
Casing Pipe	ISO 9001-2015 ISO14001:2015 OHSAS18001:2007 API 5CT -0945	J55/K55/N80-1	Φ177.8-508mm X 6-20mm

Coupling Pipe		J55/K55/N80-1	Φ270-538

Cases：

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