首页>
外国专利>
METHOD TO MOUNT A LONG-SIZE HEAVY OBJECT INTO VERTICAL OR CLOSE TO VERTICAL POSITION BY TURNING THE OBJECT ABOUT A FIXED AXLE, AND A DEVICE TO REALIZE IT
METHOD TO MOUNT A LONG-SIZE HEAVY OBJECT INTO VERTICAL OR CLOSE TO VERTICAL POSITION BY TURNING THE OBJECT ABOUT A FIXED AXLE, AND A DEVICE TO REALIZE IT
