Shanghai Katalor Enterprises has perfect quality assurance system, advanced testing equipment and high-qualified management team with control over aseries of activities such as contract signing, product researching and development, productive process and tests, product preservation and delivery. Therefore, it can make sure the user's requirements for the product quality. Production, test and sales of the products can be carried out according to SKF, API, ISO, ASTM, ASME, DIN, JIS, PED 97/23/EC, GB and other international standards, national standard, and user agreement.