由壬护丝规格：
2-3/8NU 2-3/8EU 2-7/8NU 2-7/8EU 3-1/2NU 3-1/2EU
4-1/2NU 4-1/2EU 4-1/2STC 4-1/2LTC 4-1/2BTC
5LTC 5BTC 5-1/2STC 5-1/2LTC 5-1/2BTC 6-5/8BTC
7STC 7LTC 7BTC 7-5/8LTC 7-5/8BTC
8-5/8STC 8-5/8LTC 8-5/8BTC
9-5/8STC 9-5/8LTC 9-5/8BTC 10-3/4STC 10-3/4BTC
13-3/8STC 13-3/8BTC
20STC 20BTC 3-1/2FH (320 321)
4FH (420A 421A) 4-1/2FH(420 421)
5-1/2FH (520 521 ) 6-5/8FH (620 621) 2-3/8IF (210A 211A)
2-7/8IF (210 211) 3-1/2IF (310 311) 4-1/2IF (410 411)
4IF (410A 411A ) 5-1/2IF (510 511 ) NC35 NC44 NC56 NC61
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