Happy (Tianjin) Technology and Development Co.,Ltd. specialize in researching, developing and manufacturing of rubber hoses, PVC hoses and many other kinds of hoses.
And we have been some international famous companies' OEM manufacture for a many years. At the same time, we have established stable and long-term cooperation with China Petroleum & Chemical, China Railway Department, CNMC(China Nonferrous Metal Mining Group), and China Metallurgical Group.