Baiyingwantongda Mechanical and Electrical Equipment Co., Ltd. is a professional production of "Lan Wei card" flange guard?anti-leak valve protection cover, insulation cover flanges, valves, insulation cover and other products manufacturers.my company mainly produces flange shield, anti-leak valve protection cover other products has won the State Intellectual Property Office issued a patent certificate for utility model and design patent certificate in 2014.the products are widely used in chemical, petroleum, metallurgy and other industries. such products for flanges and valves, fittings connections liquid leakage due to unpredictable, high-temperature steam splash can play an effective protection.our company has passed ISO9001 quality system certification.our selection of high-quality raw materials,to ensure that users can produce high-quality flange protective cover products,in addition to products with the use of conventional standard flange outside, it can also be processed in accordance with the actual needs of customers.