... frequency welding machinery for plastic 2:pvc,both brush /blister packaging 3:CCC,ISO9001:2008 4.penumatic 5.OEM Detailed ... stable frequency.2).Wide using in welding environmental protection plastic packing ,toothbrush packing, environmental production dress-glue products ... welding and cutting pvc or pvc based products. 4).double-way automatic slipway,back-forth or continous delivering the mould ...