The weight of the descender , tension force and friction force are utilized to design the speed controllable mini evacuation device.
This patented commodity adopts a special rope, super fiber, and is characterize by its high tension, high strength
| 价格 | 面议 |
| 发货 | China(Mainland)付款后3天内 |
| Payment Terms | L/C,D/A,D/P,T/T,Western Union,MoneyGram |
| 该产品库存不足 |
The weight of the descender , tension force and friction force are utilized to design the speed controllable mini evacuation device.
This patented commodity adopts a special rope, super fiber, and is characterize by its high tension, high strength