Ruian Tongda Machine Manufacturing Co., Ltd was established in 1992. The manual cup sealer was original to us, the following year improve to produce mechanical type sealing machine. After many years development, we research and develop the pneumatic type filling & sealing machine, and invest the mass productions. We invent the filling by piston to filling viscous material, which is better than filling by gravity. In 2002, we develop the servo screw filling type to filling High viscosity high-precision material. Now we ha···