?????t????????
?????t????????????
?????t?????????GB8713-88????????????????????????о????????????λ???????????????
?????t??????????б??
GB/T8713??1988
?????t????????????
?????t?????????????(mm)
|
??? |
?? ?? |
|
1.5 |
2.0 |
2.5 |
3.0 |
3.5 |
5.0 |
6.0 |
7.5 |
10.0 |
12.5 |
15.0 |
20.0 |
|
?? ?? |
|
25 |
28 |
|
|
31 |
|
35 |
|
40 |
|
|
|
|
|
32 |
35 |
36 |
|
38 |
|
42 |
|
47 |
|
|
|
|
|
40 |
|
|
45 |
46 |
|
50 |
|
55 |
|
|
|
|
|
50 |
|
|
55 |
56 |
|
60 |
|
65 |
70 |
75 |
|
|
|
63 |
|
|
68 |
69 |
|
73 |
75 |
78 |
83 |
88 |
|
|
|
80 |
|
|
85 |
86 |
|
90 |
92 |
95 |
100 |
105 |
110 |
|
|
100 |
|
|
105 |
106 |
|
110 |
112 |
115 |
120 |
125 |
130 |
|
|
125 |
|
|
|
|
132 |
135 |
137 |
140 |
145 |
150 |
155 |
165 |
|
160 |
|
|
|
|
165 |
170 |
|
175 |
180 |
185 |
190 |
200 |
|
200 |
|
|
|
|
|
210 |
|
215 |
220 |
225 |
230 |
240 |
???
1.???????????????????GB??T3639??漲??????GB/T699??10??20??35??45??????
2.???????????????ó????У???????????ο???á?
3.???????????2-6m??????????λ?????????????? | 
?????λ???
?? ? ? ?? 
