... ,sunshade,trademarks,garments,shoe and cap embossing,leather embossing;gas mattress,boat,life jacket,toy,stationery,raincoat,plastic cover, ... to protect electron tube and elements.4. Equipped with auto-positioning system,it is more accurate with little deciationPneumatic,hydraulic ... pressure for user to choose5. Current overload relays will auto-cutting off the high current to protect the oscillation ...