1:high frequency welding machinery for plastic 2:pvc,both brush /blister packaging 3:CCC,ISO9001:2008 ... and stable frequency.2).Wide using in welding environmental protection plastic packing ,toothbrush packing, environmental production dress-glue products with APET ... ,PETG,GAG materials.3).Good for welding and cutting pvc or pvc based products. 4).double ...