Is all sorts of advice was on the use of caps and lids from unnecessary bubbles and tubes. Here’s another — receiving beautiful shaped heads of bolts or nuts. Look at the picture. Depending on the conceived in the cover is inserted into the bolt (or nut, screwed on a greased bolt) and filled with epoxy resin.
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Offer to improve a closure for closing window frames: it a metal plate with a slot for fixing the "tongue" needs to be set obliquely, as shown in the figure. Now, if zakryvanii frame in...
HELLO, HYDROCUTTING!
So we said in the editorial, having received an article by our correspondent from Donetsk and came almost simultaneously with the letter of the head of the shipbuilding laboratory of the...