亚色91_91AV在线播放_91啦丨九色丨蚪窝人妻_国产在线91 -麻豆一区,久久国语,成人精品视频在线观看,永久免费A片在线观看全网站

News and information

News

PA20° Profile DIN3972 Standard Pre-grinding Gear Hobber Cutter with Module m2.5

2022-05-28 10:57:14 jiangxingTools 2199

PA20° Profile DIN3972 Standard Pre-grinding Gear Hobber Cutter with Module m2.5

Tooh profile is according to GB, DIN3972-3 standard

Material:HSS M2, M35, ASP2052, S390

Accuracy:class A DIN3968

Hob sizes:OD 70 * Length 70 * Bore 27

PGP: gear hob for pre-grinding use