1:high frequency welding machinery for plastic 2:pvc,both brush /blister packaging 3:CCC,ISO9001:2008 4.penumatic 5.OEM Detailed Specification1. Feactures1). Using the international wave band of industry 27.12MHz ± 0.6%, so having good output waeform and stable frequency.2).Wide using in welding environmental protection plastic packing ,toothbrush packing, environmental production dress-glue ...