MDF boards are made of wood fibers bonded by synthetic resin and compressed through pressure and heat, resulting in a solid and very uniform board with good finish and durability. Because the fibers are randomly oriented, the machine can cut them in any direction, delivering a smooth surface to the touch. Naturally, the board does not resist water well, but there do exist options on the market that are more resistant to moisture and sometimes even fire.
http://www.hengyuwooden.com/fi....tness/fitness-equipm

Dry cabinets come in various shapes and sizes and there are different technollogies available, such as dehumidifying cabinet, electronic dry cabinet, dry nitrogen cabinet, baking dry cabinet, etc. As opposed to it's name, a dry cabinet's purpose is not to provide an environment devoid of any humidiy, as this might actually be detrimental to the equipment encased within. Much like a cigar humidor, the dry cabinet’s job is to maintain an optimal relative humidity.
http://www.gms-industrial.com/....dry-cabinet/electron

At its most basic, an EV charger pulls an electrical current from either a 240v outlet or the grid it's hardwired to and delivers that electricity to the vehicle, just like any other appliance or device you charge by plugging into the wall.
The EV Chargers can be devided into many different types according to different models such as DC Ev Charger, AC EV Charger, etc. And besides, some other device like EV Charging Power Box, DC Charging Stacks and EV Connectors are all indispensiable for an EV.
http://www.evchargerchina.com/....ev-charging-power-bo

Except for sulphate, there are also many nitrate raw materials, and magnesium nitrate is one of the most widely used one.
Properties
Magnesium nitrate is an inorganic hygroscopic salt, which is composed of magnesium, nitrogen and oxygen with the chemical formula Mg(NO3)2. It naturally occurs in caverns and mines as nitro magnesite. This is not a common form, although it could be present in places where guano comes in contact with magnesium rich rock.
http://www.crownchampion.com/nitrate-raw-material/

Yarn Dyeing Machine

Yarn dyeing is another dyeing process. Generally, yarn dyeing is done for special purposes; like to make designed textile materials. Three types of processing machinery are available for yarn dyeing. They are:
1. Hank dyeing machine: This machine use to dye yarn in hank form. Sewing thread is dyed by this process.
2. Package dyeing machine: This dyeing machine use to dye the yarn in package form.
3. Beam dyeing machine: Here yarn is dyed in beam form.
http://www.chinadyeingmachine.....com/textile-dyeing-m