商品描述：
型号
|
尺寸 mm
|
截面面积 c m2
|
理论重量 kg/m
|
外表面积 m2/m
|
|||
B
|
b
|
d
|
r
|
||||
(7.5 / 5)
|
75
|
50
|
5
|
8
|
6.125
|
4.808
|
0.245
|
6
|
7.260
|
5.699
|
0.245
|
||||
8
|
9.467
|
7.431
|
0.244
|
||||
10
|
11.590
|
9.098
|
0.244
|
||||
8/5
|
80
|
50
|
5
|
8
|
6.375
|
5.005
|
0.255
|
6
|
7.560
|
5.935
|
0.255
|
||||
7
|
8.724
|
6.848
|
0.255
|
||||
8
|
9.867
|
7.745
|
0.254
|
||||
9/5.6
|
90
|
56
|
5
|
9
|
7.212
|
5.661
|
0.287
|
6
|
8.557
|
6.717
|
0.286
|
||||
7
|
9.880
|
7.756
|
0.286
|
||||
8
|
11.183
|
8.779
|
0.286
|
||||
10/6.3
|
100
|
63
|
6
|
10
|
9.617
|
7.550
|
0.320
|
7
|
11.111
|
8.722
|
0.320
|
||||
8
|
12.584
|
9.878
|
0.319
|
||||
10
|
15.467
|
12.142
|
0.319
|
||||
10/8
|
100
|
80
|
6
|
10.637
|
8.350
|
0.354
|
|
7
|
12.301
|
9.656
|
0.354
|
||||
8
|
13.944
|
10.946
|
0.353
|
||||
10
|
17.167
|
13.476
|
0.353
|
||||
11/7
|
110
|
70
|
6
|
10.637
|
8.350
|
0.354
|
|
7
|
12.301
|
9.656
|
0.354
|
||||
8
|
13.944
|
10.946
|
0.353
|
||||
10
|
17.167
|
13.476
|
0.353
|
||||
12.5/8
|
125
|
80
|
7
|
11
|
14.096
|
11.066
|
0.403
|
8
|
15.989
|
12.551
|
0.403
|
||||
10
|
19.712
|
15.474
|
0.402
|
||||
12
|
23.351
|
18.330
|
0.402
|
||||
14/9
|
140
|
90
|
8
|
12
|
18.038
|
14.160
|
0.453
|
10
|
22.261
|
17.475
|
0.452
|
||||
12
|
26.400
|
20.724
|
0.451
|
||||
14
|
30.456
|
23.908
|
0.451
|
||||
16/10
|
160
|
100
|
10
|
13
|
25.315
|
19.872
|
0.512
|
12
|
30.054
|
23.592
|
0.511
|
||||
14
|
34.709
|
27.247
|
0.510
|
||||
16
|
39.281
|
30.835
|
0.510
|
||||
18/11
|
180
|
110
|
10
|
14
|
28.373
|
22.273
|
0.571
|
12
|
33.712
|
26.464
|
0.571
|
||||
14
|
38.967
|
30.589
|
0.570
|
||||
16
|
44.139
|
34.649
|
0.569
|
||||
20/12.5
|
200
|
125
|
12
|
37.912
|
29.761
|
0.641
|
|
14
|
43.867
|
34.436
|
0.640
|
||||
16
|
49.739
|
39.045
|
0.639
|
||||
18
|
55.526
|
43.588
|
0.639
|
||||
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