To fix the drawing paper on the drawing Board, a Board which is made of particle Board, is difficult. For anchoring one corner you have to use some drawing pins, as they bend. If you use a magnet like a hammer, then every button, holding it will be included in the Board and fix the paper.
A. PROKOPENKO, Kiev
Recommend to read
BICYCLE UNDER LOCK
A small piece of steel cable, sheathed in a tubular plastic cover, enters a metal cylinder smaller than a hockey puck at its ends. This is a bicycle lock designed to prevent theft. It...
BOMB MODELS
Aerial bombs are divided into three types: primary, secondary, and special assignments. The first are high-explosive, fragmentation, armor-piercing, incendiary, and some others, the...
