日产电影一区二区三区,日本E片色视频,成人AV手机在线播放,免费无码成人片在线观看在线

       

Equipment performance:
CNC square welding machine: This equipment adopts double welding torch welding, and the welding machine adopts Japanese Panasonic welding machine. This equipment is two welding seams welded together, the welding seam is uniform, and there is no welding slag. This equipment can weld square, round and oval The product.