we are a professional manufacturer of Special welding and hot roller,covers an area of 20000m，has more than 100 skilled employees,2 CWI international welding engineers, 1 TWI international welding inspection engineer, and 60 technician and QC inspector. Our management, technology, and production backbone are all from the original Dalian Huarui Heavy Industry Group . We are move first to obtain the quality system certification and have been providing professional services for industries like met