????
???????????????????? 
?????????????GB8162-1999??????????????????????GB8162-1999????????仯???£? 
?????????????????????? 
??????????2008-08-19???? 2009-04-01?? 
?????????????????:[(??-???)*???]*0.02466=kg/??(????????) 
????????????????? 
?????????????????????????? 
??????????????????б??? 
???????????????????? 
??????????????????? 
???????????????????????? 
?????????????????????Э????? 
??????????2008-08-19????2009-04-01?? 
?????????????????:[(??-???)*???]*0.02466=kg/??(????????) 
?????韁???????
???? 
| ????? | 
?????????????? | 
| D1 | 
??1.5%????С??0.75 mm | 
| D2 | 
??1.0%????С??0.50 mm | 
| D3 | 
??0.75%????С??0.30 mm | 
| D4 | 
??0.50%????С??0.10 mm | 
??????????????????????
???????????:        
??????綽??18921511196??????????????綽??0510-88268136??
??????綽??13812042226??????????????綽??0510-88267553??
????????????:
??????綽??13382886444??????????????綽??0510-88264321??
??????綽??18014258567??????????????綽??0510-88268567??
????????????:
??????綽??13646176766??????????????綽??0510-88269158??