Luo Yang HaiEn Chemical Trade Co.,LtdOur company supplies a serial of products which is used in the coal mine such as pressurized heat exchanger through sound velocity variation; wire rope tester; frequency conversion cabinet; hoisting sheave frictional gasket; head filler block; guide pulley hoister plastic scale board etc., please refer ....Address:Room 2215, Building B of Cyber Tower, Central Zhongzhou Road, Xi Gong District, Luoyang City, He Nan Luoyang Henan 471000 ChinaProduct/Service:pressurized heat exchanger, wire rope tester, frequency conversion cabinet, hoisting sheave frictional gasket,pressurized heat exchanger, wire rope tester, frequency conversion cabinet, hoisting sheave frictional gasket