With the special request from our customer to form the big diameter super thin wall thickness elbow-120mm*1.6mm, we, shanghai mingheng pipe fittings machinery, spent quite some time to modify and design some features of the elbow cold forming machine to achieve this challenging small wall thickness elbow, now we made it-120mm*1.6mm. We welcome you and our customers to send us your special request so that we can manufacture and customize the best and innovative fitting machines for you. Service and quality are the things we strive for and the things we can ensure you with. Energy and labor saving is one of the most important advantages of our mingheng machinery.