Yingkou Bohai Machinery Equipment Manufacture Co., Ltd: We are the manufacturer of all kinds of roll forming machine and steel drum production line, machines are designed by our 20 years experience R&D team. All machines are all hot sale, and stronger quality,passed passed CE, ISO, and own trademark registration, patent for invention certificate. We can provide machine testing, video training, and price discounts. Order machine,can get the help for making project, and best service.