... Tarpaulins, Tents, Billboards, Signs, Truck CoversThe Series of High Frequency welding machine for Tarpaulins,Tents,Billboards, Signs,Truck Covers,Canvas ... ,Membrane. Name of the machine :High Frequency welding machine HR-8/10/12/15KW-F1.F2Main Application ... ergonomic work space for operator.High Frequency Tarpaulin welding machine series have HF power outputs from 4kW to 30kW ...