BoTn5000 is the upgraded product of BoTn series hardbanding wires and have passed the product certification by Fearnley Procter Group and NS-1 Level 3 certificate is awarded. So far Hilong’s main products and technology including drill pipe, internal coating as well as hardbanding all passed audit from major international certification authorities and got their approvals. Hilong has become qualified supplier of many international oil & gas companies that its product quality and system have reached the world advanced level.
Scan and follow us沪ICP备14040674号-1
沪公网安备 31011302005992号 ? 2018 HI LONG GROUP OF COMPANIES ，，，，，，， All Rights ReservedPrivacy Policy
