Sichuan Tongyi Technological Development Co., ltd. armed with the outfit punching , assembling, welding & surface treatment advanced equipments , is one of the leading manufacturers and exporters of heat exchanger for wall-hung boiler in China. We locate in Mianyang city Sichuan province-Chinese technology city. Our he【Detail
Phone:0816-4326202 13981179859 Fax:0816-4326202 Address:High-tech Zone, Mianyang City Road, South Industrial Zone PostCode:621000;