Tellurium is a chemical element with the symbol Te and atomic number 52. It is a brittle, mildly toxic, rare, silver-white metalloid. Tellurium is chemically related to selenium and sulfur, all three of which are chalcogens.
Steel plates for general structure are widely used in engineering structures such as steel structure buildings, construction machinery, heavy duty cars, bridges, wind power,pressure vessels and so on.
Developed by two engineers in Finland, siphonic roof drainage made its first appearance in Europe in 1968. Unlike traditional roof drainage systems, a siphonic system is designed to operate with the piping completely charged with water during a rainstorm
Carbon steel straight seam steel pipe is made of carbon steel. Carbon steel is also called carbon steel. It refers to iron-carbon alloy with carbon content Wc less than 2.11%. Carbon steel generally contains a small amount of silicon, manganese and sulfur
1100 aluminum circle have Excellent deep drawing and spinning properties, with weldability, heat exchange and other properties. stable quality as cookware and Architectural decoration material.