Yixing quality assurance system is certified in accordance with the ISO 9001 standards. An independentquality assurance department is responsible for all working procedures required to ensure
Vallourec, one of the world's steel giants. A world leader in its markets, Vallourec provides benchmark tubular solutions for the energy sectors and for other applications. After communication and sample testing, they chose our 3PE anti-corrosion products.This is an affirmation
