国产免费网站看v片在线精品_日本A级大片在线观看_国产一级二级亚洲_日本人妻综合一区二区 -thz国产在线观看_九月婷婷_国产目拍亚洲精品一页_四虎成人网站成人小说

News and information

News

PA20° Full-Topping Gear Cutter Hob with HSS Material

2022-08-22 14:30:13 jiangxingTools 2284

PA20° Full-Topping Gear Cutter Hob with HSS Material

To control both out-diameter on the bottom side of gear tooth  and tooth thickness when producing a small size gear.

PA20° or PA14.5°,hao=1.25m, ho=D+F=2.25m, r=0.2m-0.39m

symbol is FULL-TOPPING