... ARE WIDELY USED FOR PROFESSIONAL CONSTRUCTION, PETROLEUM, CHEMICAL INDUSTRY, MEDICINE, ELECTRIC POWER, ASTRONAUTICS, WAR INDUSTRY, FIRE PREVENTION, METALLURGY, SHIPBUILDING, FUEL GAS, NUCLEAR ... quotation, competitive price, punctual delivery and guaranteed quality.Qingdao Kum Kang Fittings Co., Ltd. was established in 2007, invested by Kum Kang Corporation ...