1.9 How to assembly the SUP laser head - Dapeng laser handheld welding machine This is Ellis from DAPENG LASER Manufacturer. We are a professional laser machine manufacturer of laser cutting machines, laser welding machines, laser cleaning machines, and laser engraving machines，with 16 years experience. if you are interested in our laser machine, please contact us by below information，thank you ！ SHENZHEN DAPENG LASER TECHNOLOGY CO., LTD Wechat: dplaser Tel: +86 17820602094 ( WhatsApp/ Skype ) Email: @ Welcome to Inquiry ! Thanks !