一、使用方法: 此辅件固定在床头导轨上(靠近垂直导轨),之后拉出螺钉12并转一个角度,使固定螺钉13的尖部阻止件12恢复原来的位置时放手,这样通过杠杆使件6伸出阻止车头转动。使用好后件12转回原来位置依靠弹簧使件12缩回,使件6缩回,车头就可以自由回转。加工产品时,此辅件不妨 First, the use of methods: This accessory fixed on the bed rail (near the vertical rail), then pull out the screw 12 and turn an angle so that the fixing screw 13 to prevent the 12 pieces of the original position to let go, so by lever Extensions 6 prevent the front from turning. After using the back piece 12 to return to its original position, the piece 12 is retracted by the spring, so that the piece 6 is retracted so that the front of the car can freely rotate. When processing products, this accessory may wish