Plastic is a compound which is synthesized with various raw materials as petroleum, natural gas or coal, and industrial salt. There are solids, liquids, and semi-solids such as phenol resin, urea resin, polyethylene, ...

Features (1) High permeability of ultr~iolet ray (2) Low thermal conductivity (3) Water proofing (4) Durability (5) No deterioration due to agricultural chemicals and fertilizers (6) Easy to handle and moderate cost

The cross-section of a V-belt is a symmetrical trapezoid. Friction drive power is provided by the grooved pulley and wedge effect of the belt. V-belt is classified according to the shape of the cross-section. The standard ...

It goes without saying that soap is indispensable to our daily life. Accordingly, the soap manufacturing industry should continue to develop -;s one of the most important industries.

The Aerosol type insecticide first made its appearance during World War II when the U.S. Army, fighting in tropical jungles and faced with-the need to cope with malaria, developed a pocketable type of pressurized ...

Most of oxygen being consumed today in Japan, is produced by the cryogenic air separation process which is represented by the name of "Linde process". The cryogenic process has been in use over 70 years but cryogenic ...

Printing is often refered to as a barometer of civilization. Where there is civilization, there is always information. And information, without exception, coexists with printing. In the beginning of the 20th ...

Yellow board, which is the most basic among paper boards, is used for a wide range of purposes, including folding boxes, back board for writing pads, etc. As yellow board is made from rice straw and treated with small ...

It was as late as in 1803 or so that the paper industry came into being in Canada, which is one of "'the leading paper manufacturing countries in the world. Development of raw materials and the invention of paper ...

Most of timbers needed in Japan have to be imported and lumber has to face international competition in price and quality as marketable" goods. Sawmill operation of extremely higher productivity has been studied ...