aluminum bronze coins
How to quickly and easily clean an ancient coin in 3 minutes: tips with video
Every numismatist has faced the need to clean coins. Coins may not only have patina,
Gas supply to a private home is a typical example of using VGP pipes
Steel water and gas pipes (VGP) - diameters, size table, GOST
Steel pipes are widely used in housing and communal services, oil, gas and chemical industries, mechanical engineering for
relative bolt sizes
How to determine the size of bolts, nuts, studs, screws
It will be difficult for a person who knows nothing about the hardware series to understand their definition
Making hydrochloric acid at home - Do it yourself
Hydrochloric acid is used in the manufacture of some explosives. Now it is a recursor, and purchase it at
Technical characteristics of HDPE pipes
Installation of HDPE, PE pipes - do-it-yourself water supply installation
Introduction Advantages and disadvantages of HDPE pipes for installation Technical characteristics of HDPE pipes Types of HDPE
State diagram of alloys of the iron-carbon system
Hypoeutectoid, eutectoid and hypereutectoid steels,
Hypereutectoid steels Steels containing from 0.8 to 2% carbon are called hypereutectoid. Structure of hypereutectoid steel
Solder repaired bicycle frame
How to solder stainless steel at home?
Soldering stainless steel is a fairly labor-intensive procedure, but it won’t cause any problems if you know everything
Methods and useful tips for sharpening cutters for a metal lathe
Technological operations carried out on a lathe with workpieces using special devices are associated with
How to perform butt welding of polyethylene pipes: instructions on how to carry out the work
Polyethylene pipes with a diameter of 2-120 cm are often used for laying water pipes, gas pipelines, stormwater equipment
Welding stainless steel with ferrous metal
Methods and technologies for welding stainless steel with ferrous metal
The process of welding stainless steel with ferrous metal causes difficulties even for experienced craftsmen. This is explained
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