換熱方蜡、制冷空調(diào)設(shè)備、發(fā)電機組零部件母蛛、制冷設(shè)備恤筛、電動工具用電動機減速機、變速機饶氏、鏈輪

Heat exchange, refrigeration and air conditioning equipment, generator set parts, refrigeration equipment, electric tools motor reducer, variable speed, sprocket