Zhejiang Happy Tree Shock Absorber Co., Ltd is a manufacturer established in1985 specializing in developing and manufacturing automobile shock absorbers, equipped with advanced machinery, technology and complete laboratory facilitis.There are over 20 R&D personnel, more than 5,000 varieties shock absorbers have been developed. We are OE supplier for Basic Group, and exports to over 50 countries and regions to Southeast Asia, Europe, Middle East, America etc. Our own brand KALASO is well known both at home and abroad.solo agents can be found in many countries.