护丝帽;NC26 NC31 NC36 NC38 N***0 N***6① N***6② NC50① NC50② NC50③ 6-5/8REG NC66 NC61 7-5/8REG NC70 3-1/2REG 3-1/2FH 4-1/2REG 4-1/2FH 5-1/2REG 5-1/2FH NC50
2-3/8REG ( 230A 231A) 2-7/8REG(230 231) 3-1/2REG (330 331)
4-1/2REG (430 431) 5-1/2REG (530 531) 6-5/8REG ( 630 631 )
7-5/8REG (730 731 ) 8-5/8REG (830 831) 2-7/8FH ( 220 221)
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 N***4 NC56 NC61