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ISO 14001 Environment Management System Certificate
OHSAS 18001 Occupational Health and Safety Management System Certificate
TOSHMS
 
ISO 9001 Quality Management System Certificate
API-5L Certificate of API Specification for Line Pipe
API-5CT Certificate of API Specification for Casting and Tubing
CNS 2056 G3030 Certificate of Welded Steel Pipes for Low Pressure Use
CNS 4178 G3098 Certificate of Welded Steel Pipes for High Pressure Use
CNS 4435 G3102 Certificate of Carbon Steel Pipes for General Structures
CNS 4437 G3103 Certificate of Carbon Steel Pipes for Machine Structures
CNS 4626 G3111 Certificate of Carbon Steel Pipes for Pressure Service
CNS 7141 G3134 Certificate of Carbon Steel Square Pipes for General Structures
CNS 2606 G4060 Certificate of Rigid Steel Conduit
CNS 6445 G3127 Certificate of Carbon Steel Pipes for Ordinary Piping
JIS G3444 & JIS G3466 Certificate of Carbon Steel Pipes and Square Pipes for General Structures
JIS G3452 Certificate of Carbon Steel Pipes for Ordinary Piping
ISO/IEC 17025 Certificate of Accreditation
   
API-5L Certificate of API Specification for Line Pipe
API-5CT Certificate of API Specification for Casting and Tubing