1.ISO9001:2008, ERP systerm management 2.Complete QA Equipment 3.OEM/ODM 4.seal washer ... 80 shore A or as your request.Tolerance Strictly upon international standard, no flash.Color Black, transparent, green, red, yellow, grey ... assurance system to assure high quality products. 7. High efficient management to achieve the production cost optimization. 8. OEM and ODM ...