hinge with screw type mounting gudgeon, hollow pivot hinge
滚花头螺钉
screw with knurled head
暂无补充释义。
screw with knurled head
暂无补充释义。
hinge with screw type mounting gudgeon, hollow pivot hinge
screw
acme screw thread【机】;trapezoidal thread【机】
screw extruder
put the screw on sb.
balance wheel oil cover screw【机】
crank connecting rod hinge screw
screw-plug fuse