Mo 09:30 a.m Tu 09:30 a.m We 09:30 a.m Th 09:30 a.m Fr 09:30 a.m Sa 09:30 a.m Su 09:30 a.m Click here for a map. Topper China Valve Manufacturers Co., Ltd. https://ngex.com/bd/b/Topper-China-Valve-Manufacturers-Co-Ltd-xiamen-fujian-China/ Topper China Valve Manufacturers Co., Ltd. manufactures and supplies superior valves with top-notch quality, excellent performance and affordable price, including ball valves, gate valves, globe valves, check valves, butterfly valves, cryogenic valves, bellows valves and pipe strainers in customized material, type, size, class, standard.