设计刀齿侧面
designed tooth side surface
布齿设计
Tooth arrangement design
tooth-distributing design
压块齿设计
Pressing block tooth design
硬齿面齿轮
JRTR gear
hard tooth surface gears
hard tooth surface gear
hardened gear
surface hardened gear
Case-hardened Gear
hardened face gear
gear with hardened surface
Box-benhnken响应面设计
Box-penhnken surface plots