Dasung Tech Co., Ltd. has improved the installation method of dual ring joint to connect the rust-free, long lasting and hygienic stainless steel pipes without welding in more convenient, safe and cost-effective way.Existing tools to work with the heavy and Uncomfortable when you move, because it limited uses the plug wires when working. Dasung Tech Co., Ltd. has developed a crimping tool is compared with existing tools.Do not require electrical wires go to the battery type is simple, light and free movement, it is convenient to work from any angle.