Nyob rau hauv scaffolding, ib tug txhawb nqa ledger yog ib tug kab rov tav raj los yog beam uas txuas cov qauv ntsug los yog uprights, muab kev txhawb nqa thiab faib cov load. Nws pab txhawb cov qauv scaffolding thiab ua kom nws ruaj khov thiab kev nyab xeeb.
Ob chav / Truss / choj / Reinforce ledger
Khoom siv: Q235 Steel
Kev kho deg: Kub dipped galvanized
Qhov Loj:Φ48.3 * 2.75 hli lossis customized los ntawm cov neeg siv khoom
| Ntev | hnyav |
| 1.57m / 5'2 ” | 10.1kg /22.26 Nwslbs |
| 2.13m / 7' | 16.1kg /35.43 Nwslbs |
| 2.13 m / 10' | 24 kg /52.79 iblbs |
