Most of the pieces of a hydraulic jack Singapore are made of steel, which is usually shopped from a lathe or a mill. This is quite obvious as this device is used to lift extremely heavy loads in industries and construction sites. The parts which are not made of steel are either plastic or rubber. These parts are injection molded or purchased, it depends on the user.
The inner handle as well as outer handle is bent and welded and made from painted steel. The alligator clip is mostly purchased and made using aluminum. On other hand, the pin is again made of steel and pump connector rod of painted steel.