Number/货号

S
mm

L
mm

Be-Cu/铍青铜
g

Al-Cu/铝青铜
g

137-17
137-19
137-21
137-22
137-24
137-27

17
19
21
22
24
27

240
270
290
295
320
350

230
280
380
440
460
605

210
250
340
370
390
520