按JB/T7974-99標(biāo)準(zhǔn)制造MadeaccordingtoStandardJB/T7974-99劃線、檢驗(yàn)、測(cè)量、鉚焊、裝配用平臺(tái)Usage:Lineation,test,measurement,welding,mounting精度：1-3級(jí)　　Grade：1-3材質(zhì)：Material　　硬度 Hardness規(guī)格（mm）精度等級(jí)( m)123精刨1000 750 183690 1000 1000 203996 1200 1000 203996 1500 1000 2448120 2000 1000 2652129 2000 1500 56140 2000 2000 601522303000 1000 1682483000 1500 1742543000 2000 1842754000 2000 2193104000 3000 2403606000 3000 308