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1、6-8各国表面光洁度等级对照表表6-18我国与外国衷再光洁度警评定敷敷值系列对照表标庶代号中NGB )031-68ISOISO 1302-1974 M ANSI Y 14.36-J978a本J!S B 0601-1976公Itl6i 2(Rz)2优先的22评定政等St/?Us等级RaRa9R，R.单位umptiiumuioumuinumumum 而 光 6 . 国 和 & 值 M10.05N10.02510.0120.5(0.05S)(0.05Z)(0.013a 130.020100.025-0.1SO.lZ0.025a 120.040.200.2S0.2ZN20.0520052r）05、vn
2、0.080.400.4S0.4ZN30.140.07530.10a 100.160.M0.10*4*0.8S0.8ZN40.280.1255020a0.1560.20*8-90.321.60N50.4160.2510K6S16Z040&0.32130.40*16.80.633.203.2S3.2ZM60.8320.5020080a吊6&257U256.3。0.8032-6.3S6.3ZN71.6631.00101.6食1.255062.5101.60。83a- 一 . .N83.21252.08012.5S12.5Z3.2a ,2.5100203.2*125,(1S（iaz）55N9$3Z50
3、4.01605.0_20025 A2BSQSZ406.3*410N10)2.55008.0320V35S)I(352)12.5a10040060S.50Z80320125500t(70S)(7UZ)Nil25:一 一1000J560025a208(2100S100Z .XX16025,1000*2(140S)(140Z)40X125V2000200s200Z(50a)320VI80(280S)(2S0Z)(100a)400S400Z(560S)(560Z)注，在美国的光咕度等以中，借才椎程优先采用12Q既准代号西慑DIN 476S-72赣M34.1券1公比2f 1.62*评定分敷R，R,R笥 a 一 一0 a .单位urnci tnam 1 uin0.0060.040.0120.06N1表0.025 _上巴 0.160.0251 N2面U.050.25一” -f.0.4052N3o.i -U.l40.63先1NaQ.21。0.28ft1.6N50*40.416度 2.6NG0.840.832等8.3N716.101.663VVNs级3.2163.2125 25N9 1和b36.3250 40N10ftV12.50312.5SOO100Nil25251000但160N125025。502000400630i ! 121
