Description Botou Huikeyuan Enginnering Control Co., LTD, Since many years, we devoted ourselves to develop the metal-plate cold roll forming machines, now we have unique management pattern and products development ability. Our products have light structure and reasonable design, and It is constantly updated and favored by industries such as steel structure construction. more information please visit https://www.hkyrollformingmachine.com/ Or Visit https://issuu.com/mildaoser/docs/4_roll_forming_machine