大菱水平仪 直角量规 型号 规格H*L*W*t mm直角度μm质量kg FG-1001100*70*25*8 1.0 0.2 FG-1002150*100*30*8 1.0 0.3 FG-1003200*120*35*11 1.0 0.7 FG-1004300*200*40*15 1.0 1.8 FG-1005500*300*55*20 2.0 6.5 FG-1006600*350*60*23 2.0 9.0 FG-1007750*400*65*25 2.0 11.5 FG-10081000*500*70*28 2.0 18.0