n. scala
misc. ladder shell
电梯螺丝 ELEVATOR BOLTS
梯形螺纹 acme thread form ; trapezoid thread ; trapezoidal screw thread ; Metric trapezoidal screw threads
阶梯螺纹 stepped screw
旋梯螺 Japanese Wonder Shell
螺旋梯 cockle stairs ; spiral staircase ; spiral stairs ; spiral stairways
梯形螺杆泵 trapezoid screw pump
螺旋爬梯 cockle stairs
螺旋楼梯 SPIRAL STAIR ; screw stair ; winding staircase ; spiral staircase
梯形螺纹量规 gauges for metric trapezoidal screw threads
应用推荐