WMC-412 is a very popular upvc window making machine, it has four welding heads which can work individually or together, the machine can do 90 degree corner welding, V welding, cross welding, variable angle welding(the right head only). It can work like two sets 2-head welding machine.
For more details about CBS Industry upvc window machine, please visit our website at www.cbschina.com, or email us at service@cbschina.com