H160/H180 Flame Polishing Machine Welder Machine Acrylic Hydrogen Water Welding Machine. Welding Kit use Ergonomically designed handle that fits in the palm of your hand, you won't feel fatigue when holding it for a long time, making your work more convenient, fast and easy. PRECAUTIONS: Welding kit power is large, do not use the heating time is too long, if a long time without stopping the work may lead to the failure of the welder can not be used, you can pause for a period of time and then continue to weld.(Except for plastic materials containing fiberglass, which have poor repair effects) The handle is ergonomically designed to save effort and not tiring hands. There are no problems with holds even for a long time, giving you a better experience. learn to use it in seconds, reliable performance, fully hardened with waterproof effect, repairs breaks, cracks in rigid or flexible thermoplastic parts., Manufacturer: GearDrivex