BESTAR is a China-leading product service provider and exporter of steel pipe , also the most valuable subsidiary of Shinestar Holdings Group. BESTAR passed the SGS Certification of China Supplier System , ISO9001 Quality Management System Certification , ISO 14001 Environment Management System Certification , ISO45001 Occupational Health & Safety Management System Certification and CE certification , got comprehensively high score in the HuaXia D |