screw-nut steering gear  螺旋式转向机构

recirculating ball and nut steering gear  循环球和螺母式转向器

ferrous and non-ferrous screw and nut  黑色及有色金属螺钉和螺母

Lead screw and nut  丝杠螺母副

lead screw and nut pair  凸轮推杆

reversed screw steering gear  逆螺纹操舵装置

screw and nut  带帽螺钉

screw and nut set  丝杠螺母副

screw steering gear  螺杆操舵装置

worm and gear steering  蜗杆蜗轮转向装置

adjusting screw nut  调节螺母

adjustment screw nut  调整螺钉螺母

AO titanium plate and screw  AO微型钛金属板及螺钉

ball screw nut  球头螺钉螺母

band wheel crank screw nut  老年保健效益指数; 带轮曲柄螺丝帽

Casting tube with female screw and side fins  内螺纹外翅片铸铁管

cervical lateral mass plate and screw  颈椎侧块钢板

combined screw and centrifugal seal  螺旋和离心组合式密封

connecting lever screw nut  连杆螺丝帽