RD-SG4 screw machine is a medium speed 4 LED machine, automatic 4 head LED machine system Rongde LED machine industry for fast and accurate and cost-effective and patch independent research and development. The LED machine Rongde company using bold and innovative design, the introduction of imported abrasive wire rod, in one fell swoop for the domestic LED machine to achieve high speed, high precision and high stability, become the leading products of domestic LED machine, far better than their counterparts in manufacturers, LED light bar, LED, circular patch SMT equipment ideal