換熱、制冷空調(diào)設(shè)備、發(fā)電機(jī)組零部件、制冷設(shè)備、電動(dòng)工具用電動(dòng)機(jī)減速機(jī)、變速機(jī)、鏈輪

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