Roc-Master has always been committed itself to the research and development and application of the anti-hydrogen sulfidematerial in the sour condition, and has successful experience in such material,however,we still keep on imporoving.
HIC SSC list

In Nov.2008, Our A694 F52 flanges,A860 WPHY 52 fittings and Bolt & nut coating with Xylan 1424 were applied in Si Supply and Installation of Proposed 800mm NEWater Submarine project for VAN OORD Dredging and Marine Contractors in Singapore which full-filled the SHELL DEP standard of 31.40.21.34-Gen and 31.40.21.30-Gen. 

In Nov,2008, we signed our first annual agreement of supplying common flanges, process pipe fittings for WenChang cooperating oil field use & for operating oil-Gas filed use with CNOOC.

In Nov, 2008, we signed our first annual supplying flanges & process pipe fittings agreement with CNOOC Wenchang 13-1/2 oil field operating company.

In Nov, 2008, The flange installation instruction prepared by our technical dept. lays a foundation for better improving the quality of after-sales services.
please go to our website for download.

On Nov 6th,2008, we successfully passed a formal spot HSE auditing held by Aker Solutions.

In Oct, 2008, Thanks for Roc-Master technical dept, production dept. and quality control dept's great efforts, ROC-DSA double studded adapter with material AISI 4130+ Inconel 625 weld overlay passed all the associated tests successfully and accepted by the Consultant Company of Sichuan PuGuang Sour gas field Developing Engineering Gas Gathering System Project.  

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.

In Oct, 2008, Thanks for Roc-Master technical dept, production dept. and quality control dept's great efforts, ROC-DSA double studded adapter with material AISI 4130+ Inconel 625 weld overlay passed all the associated tests successfully and accepted by the Consultant Company of Sichuan PuGuang Sour gas field Developing Engineering Gas Gathering System Project. 

The brief introductions for Caldding Swivel Ring Flange & Double Studded Adapter is available now, please go to our website for download.