Residential Bollards
Product Type:Automatic rising bollard
Material: 304 stainless steel
Thickness: 6mm
Straight line: 219mm
Working temperature: -60℃-70℃
Waterproof grade: IP68
Lifting speed: 3.2s
Falling speed: 2.1s
https://www.sheetmetalprocessi....ngplant.com/stamping