In the production process of silica gel products, the low hardness of silica gel products in the molding, if the control is not good will appear the edge of the phenomenon, commonly known as the silica gel product explosion. Why do low-hardness silica gel products exhibit such explosive edge phenomena?[Detailed]

Metal strip steel sheet with steel belt, gold watch with gold belt, and some other materials, to be rigorous, no longer listed. Metal watchband is strong, life cycle is long, can wear a lifetime; Its not boring, its not hot, its kind of waterproof. I said that to some degree, which means strap to soak in the water without a loss...[Detailed]

Precious metal material(1) platinum is a rare and expensive natural pure white metal, is one of the worlds rarest jewelry with precious metals, from year to year supplies only 5% of the gold, has almost twice as much on the strength of the gold, 30 times more rare than the gold. Platinum, pure and pure, with a purity of up to 90...[Detailed]

1) copper is the best thing in the wristwatch, it is cheap, and the characteristic is easy to process, it is mainly used in the machine core, and most of the current use is the brass alloy splint. Usually we see the color of the machine is yellow and white, the yellow machine is usually coated with titanium oxide, the white mach...[Detailed]