Gas masks were first used in warfare. They were later developed and improved before they were applied to various other occasions. It was invented by the famous Russian chemist Jerzyski.
In April 1915, the German army used chemical weapons in the battle of Ebbel, and used 180,000 kilograms of chlorine gas to poison 15,000 people in the Treaty State and kill 5,000 people.
The famous Russian chemist, Jerinski, personally went to the front line to investigate and find ways to fight against gas warfare. He found that when the chlorine attack struck, soldiers who used military coats to cover their heads or drill their heads into soft soil survived. After analysis, he discovered that the wool coats and soil particles of the military coat had the effect of adsorbing toxic substances. Later, he further studied and experimented and found that charcoal can adsorb toxic substances and can also make air flow. As a result, Jie Linski developed a very effective anti-virus activated carbon. In 1916, the first gas mask was born. The use of the battlefield and toxic sites in the field made the antivirus effect very good. After this, all countries competed for imitation. As a result, gas masks became a regular supply for battlefields and toxic sites.
Polishing Pads are use with Fibre Discs, PSA Discs and Discs,stone polishing pad,wool pad,etc.Backing pads are Widely used in grinding and polishing artificial stone, furniture and wood products, metals, cars and other items.Sanding disc backing pads are used beneath sanding discs to provide cushioning for contoured work and to provide the attachment surface for hook and loop or quick change discs. Pads may be solid or contain hole patterns to match sanding disc vacuum holes. Choose from soft to firm density depending on the degree of flexibility desired.
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Excellent balance: the balance is important when polishing. The reinforced inner structure keeps the plate stable and smooth. High-quality material and advanced production technology ensure the pad balance.
Resistance to heat, and reducing heat transfer to the paint surface.
The better balanced a backing pad is, the less fatigue you feel when polishing or waxing car.
The Velcro backing has extra gripping power and it is strong.
works well and has not shown any sign of wear after about 50 hours of use
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