Hot plate machine 1.apply to: large or unregulated work pieces welding, such as nylon, PP, PE. Plastic parts: the welding for car carbon tube,car lamp,dynamo,accumulator,filter,bumper,cleaner,ball, 2.Features Model:HY-350/400/450/500 The maximum welding area:400*500 Besides mould is changeable, the shape will meet the products need.