... : 2MM TO 50MMOUR PRODUCTS ARE WIDELY USED FOR PROFESSIONAL CONSTRUCTION, PETROLEUM, CHEMICAL INDUSTRY, MEDICINE, ELECTRIC POWER, ASTRONAUTICS, ... , METALLURGY, SHIPBUILDING, FUEL GAS, NUCLEAR ELECTRICITY, URBAN CONSTRUCTION, HOT-WATERHEAT AND ENVIRONMENTAL PROTECTON AND SO ON.WE ... punctual delivery and guaranteed quality.Qingdao Kum Kang Fittings Co., Ltd. was established in 2007, invested by Kum Kang ...