2d hook

steam valve

Control valve system.

Triple function air valve plans

Yee pavco

Manometer

3d mechanical part

mounting bracket

Mechanic piece

3d clamps

Distribution box

cylinder support

pipe assembly

standard figure 8

3d solid model

3d u-bolt pipe fittings

Pipe with flanged reduction

Upstand for 3d metal prop

Details of inverted t beams

pipe support

Driving and transmission