丰满人妻少妇久久久久久,性少妇freesexvideos高清 ,女人为啥摸几下就让进了,十八禁男男腐啪GV肉入口

1.The machine is controlled by computer, combined mechanical and electrical

2.Using photoelectric sensor,Accurate control points of the machine automatically, driving action.

3.Using a special quartz infrared heating tube, plastification heating on PVC particles.To improve the adhesion of PVC.