Following Roc-Master Ji'an Piping Products Co., Ltd., Roc-Master Flange Co., Ltd. successfully got a TS certificate awarded by Shanghai Bureau of Quality Supervision.
Materials include 516–Gr70, LF-2, 304 & 316 Stainless Steel. Available with Threaded
or Socket-Weld connections and either Raised-Face (125 – 250 AARH) or Ring Tongue
Joint – Male or Female, Oval or Octagonal - gasket types. Any other material available
upon request.
In July,2008,our bulkhead ASTM A694 F70 for submarine pipeline application has good quality and quick delivery,thus we were awarded an official letter of acknowledgement from Roc Oil(BOHAI) company.
On July 24th 2008, From the main development and gathering ground project of Sinopec Zhongyuan Oil field, Pu Guang Gas Field, Roc-Master Flange Co., Ltd has successfully acquired on all the orders of Anti-Sulfur Carbon Steel Flanges of the high H2S content moisture pipelines.