Ordinary quartz sand, namely SiO2 ≥ 90-99% Fe2O3 ≤ 0.06-0.02%, refractoriness 1750 ° C, large part of the appearance of the surface, yellow skin cyst on the surface. Ordinary quartz sand is generally a kind of water treatment filter material which is made of natural quartz ore, crushed, washed, dried and secondaryly screened; the filter material has: no impurities, no calibration, high density, high mechanical strength, The long life cycle of the sewage capacity line is an ideal material for chemical water treatment. The particle size range is 5-220 mesh, which can be produced according to the user's requirements. Main uses: metallurgy, ink silicon carbide, glass and glass products, enamel, cast steel, water filtration, sodium silicate, chemical, spray and other industries.
Ordinary quartz sand filter material acts as a filter, just as water penetrates into the ground through sand and gravel, blocking the suspension in the water, mainly for those fine suspensions. Quartz sand technology has reached the domestic leading level.
Quartz sand is an important industrial mineral raw material, non-chemical dangerous goods, widely used in glass, casting, ceramics and refractory materials, smelting ferrosilicon, metallurgical flux, metallurgy, construction, chemicals, plastics, rubber, abrasives and other industries. Can be transported by steam, train, and water. Industrial production is generally 50KG or 25KG packaging and export tons of bags. Common specifications: 0.5-1.0mm 0.6-1.2mm 1-2mm 2-4mm 4-8mm 8-16mm 16-32mm. (mm is the unit of mm).
Automatic Sliding Doors can either be a single door sliding in one direction or bi-parting doors where each door leaf slides in the opposite direction. They are often used in grocery stores, entrances to shopping malls, hospitals and other applications where you want to provide your customers a hands free, safe and easy access to your building.
Hospitals
Airports
Retail centers
Pharmacies
Hotels
Grocery stores
Hardware stores
Sporting goods stores
And more
In addition, one of the biggest benefits of automatic doors is energy savings. Since these doors only open when someone comes in or out of your building, it prevents the loss of energy when a door may otherwise be left open for a long time.
Hongfa will only dispatch highly trained CE Certified inspector/technicians to inspect, repair, service or replace automatic doors. This ensures we provide the most efficient and safest door repair for your business.
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Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.pvchighspeeddoor.com