For the owners of the garden or suburban areas it is possible to make usual dural or steel pipe. Shown in figure “a digger” will come in handy for digging deep and narrow trenches during laying of water supply lines, and digging irrigation or drainage channels.
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Still, the vast majority of models of submarines with rubber motor class EL-500 (500 mm in length) are built on the same scheme. However, the adopted version with the detachable bow and...
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During fabrication of the models all of us often have to process with high precision perpendicular and aligned the holes for the bearings and bushings in housings, crankcases, engines...
