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| No. | Â Â Â Â Â Item | Standard Specification | ||||||
| 1 |     Antimony ≥% | 99.99 | 99.995 | 99.999 | 99.9995 | 99.9999 | 99.99999 | |
| 2 |
 Impurity  PPMwt Max Each   |
Ag | 1.0 | 1.0 | 0.05 | 0.05 | 0.01 | 0.002 |
| Cu | 1.0 | 1.0 | 0.05 | 0.05 | 0.01 | 0.002 | ||
| Mg | 5.0 | 2.0 | 0.20 | 0.20 | 0.05 | 0.005 | ||
| Ni | 1.0 | 1.0 | 0.20 | 0.20 | 0.05 | 0.005 | ||
| Zn | 5.0 | 5.0 | 0.50 | 0.50 | 0.05 | 0.020 | ||
| Fe | 5.0 | 5.0 | 0.50 | 0.50 | 0.05 | 0.020 | ||
| Cd | 5.0 | 1.0 | 1.00 | 1.00 | 0.01 | 0.003 | ||
| Pb | 10 | 10 | 0.50 | 0.50 | 0.05 | 0.005 | ||
| Bi | 5.0 | 5.0 | 0.20 | 0.20 | 0.02 | 0.001 | ||
| Si | 5.0 | 5.0 | 1.00 | 1.00 | 0.10 | - | ||
| Mn | 1.0 | 1.0 | 0.05 | 0.50 | 0.01 | 0.001 | ||
| Au | 1.0 | 1.0 | 0.20 | 0.20 | 0.05 | 0.020 | ||
| As | 10 | 5.0 | 1.00 | 0.50 | 0.30 | 0.020 | ||
| S | 10 | 10 | 0.50 | 0.50 | 0.10 | - | ||
| Total | Â 100 | 50 | 10 | 5 | 1 | 0.1 | ||
| 3 |      Size |  Œ5N 6N 7N 3-25mm irregular lump 90%   5N 6N D40XL200mm bar,           D15+/-2mm rod  Ž5N 6N 7N 1-3mm /1-6mm Shot |
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|  4 |      Packing |       1kg or 2kgs is in polyethylene bottle with plastic bag outside | ||||||
WMC is of expertise in developing and specializing in preparation and purification of metals, oxides and compounds to 4N, 5N, 6N and 7N purity which is in fabricated form of lump, rod, granule, powder, sheet, wire and ingot. All the material is qualified by the analysis of ICP-MS, GDMS and other advanced instruments domestically and internationally.
It is always our goal to be a consistent, reliable and an affordable source for global material requirements at any time. Antimony is a hard, brittle crystalline metal with silvery white and lustrous color. High purity antimony of 99.99%, 99.999%, 99.9999%, 99.99999% (4N 5N 6N 7N) is primarily used in the manufacturing of thermoelectric devices, infrared detectors, high purity alloys, electronic cooling elements, III-V compound semiconductors gallium antimonide (GaSb) and indium antimonide (InSb), and as the dopant of single crystal silicon and germanium growth.
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| No. | Â Â Â Â Â Item | Standard Specification | ||||||
| 1 |     Antimony ≥% | 99.99 | 99.995 | 99.999 | 99.9995 | 99.9999 | 99.99999 | |
| 2 |
 Impurity  PPMwt Max Each   |
Ag | 1.0 | 1.0 | 0.05 | 0.05 | 0.01 | 0.002 |
| Cu | 1.0 | 1.0 | 0.05 | 0.05 | 0.01 | 0.002 | ||
| Mg | 5.0 | 2.0 | 0.20 | 0.20 | 0.05 | 0.005 | ||
| Ni | 1.0 | 1.0 | 0.20 | 0.20 | 0.05 | 0.005 | ||
| Zn | 5.0 | 5.0 | 0.50 | 0.50 | 0.05 | 0.020 | ||
| Fe | 5.0 | 5.0 | 0.50 | 0.50 | 0.05 | 0.020 | ||
| Cd | 5.0 | 1.0 | 1.00 | 1.00 | 0.01 | 0.003 | ||
| Pb | 10 | 10 | 0.50 | 0.50 | 0.05 | 0.005 | ||
| Bi | 5.0 | 5.0 | 0.20 | 0.20 | 0.02 | 0.001 | ||
| Si | 5.0 | 5.0 | 1.00 | 1.00 | 0.10 | - | ||
| Mn | 1.0 | 1.0 | 0.05 | 0.50 | 0.01 | 0.001 | ||
| Au | 1.0 | 1.0 | 0.20 | 0.20 | 0.05 | 0.020 | ||
| As | 10 | 5.0 | 1.00 | 0.50 | 0.30 | 0.020 | ||
| S | 10 | 10 | 0.50 | 0.50 | 0.10 | - | ||
| Total | Â 100 | 50 | 10 | 5 | 1 | 0.1 | ||
| 3 |      Size |  Œ5N 6N 7N 3-25mm irregular lump 90%   5N 6N D40XL200mm bar,           D15+/-2mm rod  Ž5N 6N 7N 1-3mm /1-6mm Shot |
||||||
|  4 |      Packing |       1kg or 2kgs is in polyethylene bottle with plastic bag outside | ||||||
WMC is of expertise in developing and specializing in preparation and purification of metals, oxides and compounds to 4N, 5N, 6N and 7N purity which is in fabricated form of lump, rod, granule, powder, sheet, wire and ingot. All the material is qualified by the analysis of ICP-MS, GDMS and other advanced instruments domestically and internationally.
It is always our goal to be a consistent, reliable and an affordable source for global material requirements at any time.
Industrial sectional doors are the most durable and longest lasting doors to ensure circulation at the areas of the factory entrance and exit of goods, loading and unloading areas.
The body of sectional door is forming by 40 mm sandwich panels. These panels provides sound and heat insulation due to the intense doped polyurethane insulation was injected between galvanized steel sheet. (50 kg/m3).
Industrial sectional door systems provide space-saving with opening parallel to the ceiling.Any opening can be used clearly . and produces in accordance with the transition range and the height in the factory buildings or warehouses.
Doors is working sliding by be the most appropriate the gap between the top level of the gate with a ceiling height within the side rasils. The door can be mounted in different ways according to the gap distance (standard, low, highlift and vertical track systems).
Industrial sectional doors can easily be opened automaticly by 230-380 V-AC/50 Hz electric motor or manualy thanks to torsion spring system that balances the weight of the door.The galvanized springs are made to be durable of 25.000 door cycles.Motor with emergency chain All the drive systems have a mechanical back-up system fitted to the reduction gearbox of the electric motor, so that the sectional door can be opened if the power fails. The reduction gearbox can then be powered using the chain.
Industrial Sectional Door,Industrial Overhead Sectional Door,Industrial Warehouse Sectional Door,Industrial Garage Interior Sectional Door
Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.hongfadoor.com