Into silicon metal 553, a large number of used in smelting ferrosilicon alloy element in steel industry, for reducing agent in many kinds of metal smelting, silicon and aluminum alloy good group in yuan, the vast majority of casting aluminium alloy contai
The earphone tube is designed to be rotated and detachable. It is made of standard stainless steel. Every time you screw on the tube, it is full of ceremony!
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.
Handheld fiber Laser marking machine adopts the third generation (the most advanced) solid-state fiber laser to create the super fine effect of marking. This model is compact structure, no pollution, no optical power coupling loss, air cooling, high effic
Petrochemical products are closely related to people’s lives, from spaceships in space, planes in the sky, ships in the sea, trains and cars on land, to computers, desks, toothbrushes, towels, food packaging containers that we use every day, multicolored