Shandong Raintech SANS Technology Co. Ltd is a professional manufacture for CNC machines used widely in steel structure and steel tower, transmission and distribution steel coils processing, cold roll forming field which located in Jinan, China.brsteel structure including CNC angle steel punching , shearing marking line, CNC flat bar punching shearing and marking line, CNC high speed planar drilling machine for steel plates tube sheets, big flanges CNC three dimensional drilling machines for beams; Combined punching marking and cutting line for flat steel, angle bar and channel steel CNC band sawing machine etc. .,brMetal coils and sheets processing machinery. including Cut-to-Length lines> Slitting lines Tension Leveling lines and Precision Leveling machines,