I plant production and wholesale of various industrial remote control and its accessories, including: small monorail and light rail cranes, construction and tower cranes, gantry and bridge cranes, trailers, construction machinery and concrete mixers, mobile crane equipment, traffic radio, radio electric hoist, hoist a radio, and so a wireless remote control, a wireless remote control and more, more control of a wireless remote control, single duplex wireless control, and so on. And can be tailored according to customer needs. Outside machine production development of various circuit blocks. There needs to exercise 2,920,049,832. Or contact 18838228791