Comparative angle measuring: please refer to figure 1, to find out the angle value as 150° directly.
Absolute angle measuring: please refer to figure 2, to find out the angle value between horizon and slope as 180°-150°=30°. Please take note to keep the bubble always in the center of vial.
Comparative angle measuring: please refer to figure 1, to find out the angle value as 150° directly.
Absolute angle measuring: please refer to figure 2, to find out the angle value between horizon and slope as 180°-150°=30°. Please take note to keep the bubble always in the center of vial.
| Item NO. | Length | Qty/CTN |
| GWP-12A | 400mm/16" | 30 |
