Reinforced接管flange
Reinforcement pipe
Business license
Special Equipment Manufacturing License
PED Quality Certification
Factory Approval Certificate
Jacket Flange Manufacturing Process
Heat treatment process for increasing the hardness of the overall manhole flange sealing surface
An improved high-temperature-resistant pressure flange and a method for its preparation
A butt-welded sealing flange and its manufacturing process
Sinopec
China National Petroleum Corporation
China National Offshore Oil Corporation
Sinopec Engineering Co., Ltd.
China Huanqiu Engineering Company
BP Global
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