Solid Valve Balls,Sealing Alloy Valve Balls,Stainless Sealing Alloy Valve Balls,Steel Alloy Valve Balls WENZHOU ZHENHONG VALVE BALL CO., LTD , https://www.zhvalveball.com For the installation of machine tools, instruments and other types of equipment, adjustment horns are often used to precisely adjust the level and elevation of the equipment. The traditional adjusting horn is shown in Figure 1. The driving screw drives the inclined slider to move horizontally to adjust the lifting and lowering of the equipment. This kind of adjustment horn has small adjustment amount, inconvenient adjustment, complicated structure, large volume and high cost.