 |
0.00% | |
 |
0.00% | |
 |
0.00% | |
 |
0.00% | |
 |
0.00% |
 |
1 樓EHS網友 2012-09-24 14:57
應該考慮到1:4原則
支持 0
反對 0
回復 0
舉報
|
 |
2 樓mycarmaybach 2012-09-25 11:04
the detail description for the lift
thanks for the editor
支持 0
反對 0
回復 0
舉報
|
|
|
3 樓EHS網友 2012-09-25 13:12
Good instruction for safety using ladder, and one more thing:
The ladder's upper lever should be leaned above 1 meter.
支持 0
反對 0
回復 0
舉報
|
