Supply the high-quality castors, with SGS and ISO9001 authentication, and our factory develop 100% of plastic mould by ourselves,since 2009, our company all products use cold-resistant tough resistant, shock resistant raw materials into produce ,can be tested through the international standard and beyond the standard accoring to guest's reqiurements. In addition, our company own steam room,test room can be used for teat according to the customer ,and carry on ROHS testreguarly,so as to ensure the products of our campany pass the European requirement for environment protection.Quality guarantees and the price is reasonable .Welcome the masses of friends to consult and negotiate.