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1).Heavy duty aluminium alloy frame thickness=1.4 to 1.6±0.1mm and frosted oxidized. | |||||||
2).3pc of entire level vial indicate level,plumb and 45°,Tolerance of accuracy: 0.029°=0.5mm/m basd on main datum and 0.057°=1mm/m on | |||||||
opposite datum on which strong magnet inserted. | |||||||
3).ABS plastic parts and TPE soft end cover shockproof. |
spirit level