Profile: Zhejiang Aolong Valve Manufacturing Co., Ltd. is involved in the design, manufacturing and marketing of valves. We are accredited with ISO 9001:2000 certification. We offer standard valve, globe valve, seal semi-valve, seal butterfly valve, electric control valve and high temperature rotary joints. We work with various materials including carbon steel, stainless steel, heat-resistant alloy, low temperature steel and dual-phase steel.