We are professionally supplier of stainless steel plate, ERW, Seamless pipe tubes & Fittings, Carbon steel & Alloy Steel pipe & fitting. And also the overseas market exclusive agency of some factories. The rich experience, advanced technology, good quality and honest business ethic bring the customers supports and approvals to YISIN and make it appointed supplier by many international enterprises. The products are mainly used in: chemical industry, petroleum, medicine, food, energy, electric power, aeronautics and astronautics, environmental protection, boiler gas, war industry, machinery, nuclear power, construction, shipbuilding and etc. The third party inspection like Bureau Varieties, SGS, EN 10204-3.2 etc. & any third party inspection is available as per customer&＃039;s requirement. Our Quality Principle: High Quality Internal quality assurance and continuous improvement Low Cost Satisfactory products to customers with competitive price Good Practice Proper reporting, filing and execution in the quality system