... Description Function:This tester is supported product for door and window physical property tester. It is applicable for testing the ... weight, warp, bend, distortion, diagonal deformation of the door and window, forced open-close fating test.Main technical specifications:1. Range ... mm Accuracy: 0.1mm 3. Switching speed of side hung window 0~20times/min4. Switching speed of sliding window15m/min5. ...