Building a staircase, even a short one, isn't simple. It requires precise measurements and some careful calculations. Here's how.
Труба печи для дома
Aufbau eines Kachel - Grundofens
Experimental masonry hydronic heating workshop
How to tie an Alpine Butterfly Loop - twist method. The finger-wrapping method is easier, though. See AnimatedKnots.com. Fantastic knot, btw. Very strong and very easy to untie.
Giętarka do prętów zbrojeniowych ZP-30R:
square tube bender, cost less than 25 dollars