The barb of bolt tray can be positioned in the drilled hole, and the rod body is well centered. The bolt tray is one of the parts of the pipe joint bolt, its material is made of welded ring and rolled head, and the ring cutting is made to make the retaining ring. Material: Q235,Q345 Size: 150*150*10, 150*150*8, 140*140*10, 140*1
