1. Execution standard: QB/T4833-, Chapter 6 6.3.3l, Figure 4 GB/T34454-2017/IEC 2929:2104. Manufacturing

2. The test bench is assembled with 40X40 national standard aluminum profiles and test wooden boards. Equipped with a movable Fuma wheel below

3. The frame is assembled from untreated solid wood panels (thickness 20mm), with an inner frame size of 2000mm, an inner width of 1150mm, a fence height of 300mm, an edge angle width of 400mm, and a length of 800mm. The interior color of the fence is 18% gray

4. Dust spraying test area along the wall 50mm is equipped with a dust spraying baffle (made of 304 stainless steel)