... , product, once introduced to get users.2:It is application for garment factory , printing mail and so on , designed ... , pressure calibration is operation , designed especially for imported foaming pyrographs for high pressure requipment .3:The heat source is ... ~ Z, numbers 0 to 9, symbols & * / - total 403: Application materials: Aluminum, copper, steel, stainless steel, etc.4: Engraving area ...