????????????|?????????|??????????|??????????? 
??λ???????????????GB3639-2000?????????е???????豸???羫??????????????λ???????????????  
???????????ξ??????????????????????????,???????ξ??????????????????????????Ч???????? ??ν???????ι???????????羫??(????Χ)?????????????????????????????????? ?ü?????????????????ι????????????????????????????GB8713--88???????ISO4394/I-1980(E) ?????????±?: ????????????????????? ? ???? GB8713-88 ISO4394/I ?????繫?? H8 H9 H10 H8 H9 H10 H8 H9 H10 ? ?? ?? 0.3/1000 A: 0.3/1000 A: 0.5/1000 B: 1/1000 B: 1/1000 C: 1.5/1000 C: 1.5/1000 ???%10????? %10????? %5???????? ? ?? 0.04 ??漲 ??  
????????????????:[(??-???)*???]*0.02466=kg/??(????????) 
 
| ?????????20#???????? |  
| ?????????20#???????? |  
| ???? | 
??? | 
???? | 
??? | 
???? | 
??? | 
???? | 
??? | 
???? | 
??? |  
| 20# | 
25*2.5 | 
20# | 
36*4 | 
20# | 
48*10 | 
20# | 
63.5*8 | 
20# | 
76*18 |  
| 20# | 
25*3 | 
20# | 
36*5 | 
20# | 
51*4 | 
20# | 
63.5*10 | 
20# | 
83*6 |  
| 20# | 
25*4 | 
20# | 
36*6 | 
20# | 
51*5 | 
20# | 
63.5*12 | 
20# | 
83*8 |  
| 20# | 
25*6 | 
20# | 
36*7 | 
20# | 
51*6 | 
20# | 
63.5*14 | 
20# | 
83*10 |  
| 20# | 
25*6 | 
20# | 
36*8 | 
20# | 
51*8 | 
20# | 
63.5*16 | 
20# | 
83*12 |  
| 20# | 
28*3 | 
20# | 
38*4 | 
20# | 
51*10 | 
20# | 
70*6 | 
20# | 
83*14 |  
| 20# | 
28*4 | 
20# | 
38*5 | 
20# | 
51*12 | 
20# | 
70*8 | 
20# | 
83*16 |  
| 20# | 
28*5 | 
20# | 
38*6 | 
20# | 
57*4 | 
20# | 
70*10 | 
20# | 
83*18 |  
| 20# | 
28*6 | 
20# | 
38*7 | 
20# | 
57*5 | 
20# | 
70*12 | 
20# | 
89*6 |  
| 20# | 
30*4 | 
20# | 
38*10 | 
20# | 
57*6 | 
20# | 
70*14 | 
20# | 
89*8 |  
| 20# | 
30*5 | 
20# | 
42*4 | 
20# | 
57*8 | 
20# | 
70*16 | 
20# | 
89*10 |  
| 20# | 
30*6 | 
20# | 
42*5 | 
20# | 
57*10 | 
20# | 
70*18 | 
20# | 
89*12 |  
| 20# | 
30*7 | 
20# | 
42*6 | 
20# | 
57*12 | 
20# | 
73*6 | 
20# | 
89*14 |  
| 20# | 
30*8 | 
20# | 
42*8 | 
20# | 
57*14 | 
20# | 
73*8 | 
20# | 
89*16 |  
| 20# | 
32*4 | 
20# | 
42*10 | 
20# | 
60*4 | 
20# | 
73*10 | 
20# | 
89*18 |  
| 20# | 
32*5 | 
20# | 
45*4 | 
20# | 
60*5 | 
20# | 
73*12 | 
20# | 
89*20 |  
| 20# | 
32*6 | 
20# | 
45*5 | 
20# | 
60*6 | 
20# | 
73*14 | 
20# | 
95*6 |  
| 20# | 
32*7 | 
20# | 
45*6 | 
20# | 
60*8 | 
20# | 
73*16 | 
20# | 
95*8 |  
| 20# | 
32*8 | 
20# | 
45*8 | 
20# | 
60*10 | 
20# | 
76*6 | 
20# | 
95*10 |  
| 20# | 
34*4 | 
20# | 
45*10 | 
20# | 
60*12 | 
20# | 
76*8 | 
20# | 
95*12 |  
| 20# | 
34*5 | 
20# | 
48*4 | 
20# | 
60*14 | 
20# | 
76*10 | 
20# | 
95*14 |  
| 20# | 
34*6 | 
20# | 
48*5 | 
20# | 
60*16 | 
20# | 
76*12 | 
20# | 
95*16 |  
| 20# | 
34*7 | 
20# | 
48*6 | 
20# | 
63.5*5 | 
20# | 
76*14 | 
20# | 
95*18 |  
| 20# | 
34*8 | 
20# | 
48*8 | 
20# | 
63.5*6 | 
20# | 
76*16 | 
20# | 
 95*20       |   ????????????????
                       
                       
                      ?????????????????????????????????????????????????????????????????????????????????????????С???????????????????????????????????????????????????????????,??????????????20#??45#??16MN??Q345??A/B/C/D/E????27SIMN??15CrMO??12Cr1MOV??10CrMO910??304??304L??316??316L??321??P11??P22??P91??T91.??й???GB8162-99?????GB8163-99????????????ù?????????GB3087-99??GB5310-85????????ˉ?ù??GB5312-8???ù??... 
                      ???????????0510-88264321??88223334 ???棺0510-88223334 ?????18921237777 
                   |