The High Frequency-HF Box Type PVC Machine is used for welding various plastic items like pass cover, money purse, inflatable toys and packaging pouches. J. M. Vasnani Engineering Co. Offers High Frequency-HF Box Type PVC Machine. J. M. Vasnani Engineering Co. Manufactures processing machinery for welding PVC and PP Stationery marketed under the brand name `Packweld`. The HF Box Type PVC Machine is foot operated with power output 1.2KW.