Material characteristic: Using high quality aluminum extruded shutter profiles, multi-layer painting or film layer surface have excellent scratch resistance function, not decay, wearable and anti-collision.Nice white profiles, accepting mass customization according to users requirements(light gray, brown, cream, wood, fused, sand color and light sand color ,etc.)
Integrated protection and decorative features together,the best replacement of traditional theft network security replacement; flexible way open ways, supporting hand control, group control. The door could be your safe rescue channel when in emergency.
When in state of close, support ventilation and lighting, this contribute to enhance the cooling and heating effect of air conditioner, ensure safety, comfortable, energy saving, noise isolation and aesthetics.
Aluminum Roller Shutter Door,Commercial Aluminum Roller Shutter Door,Aluminum Alloy Roller Shutter Door,Color Steel Aluminum Roller Shutter Door Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.hffreezerdoor.com
How to judge the level of recycled particles?
Recycled granules are the abbreviation of recycled plastic granules. Recycled granules belong to the category of plastic granules. Recycled plastics are plastics that have been recycled from used new materials or discarded plastics through a boring machine. A plastic pellet cut into pellets. The recycled granules are mainly classified according to the different raw materials used and the characteristics of the processed granules, and are generally classified into first, second and third grade materials.
The first-grade material means that the raw materials used are scraps that are not grounded, or called chamfers, some are spouts, rubber heads, etc., the quality is also good, that is, it has not been used, in the process of processing new materials. In the middle, the remaining small corners, or the raw materials of quality. The particles processed from the wool have good transparency and the quality can be compared with the new material, so it is a first-class material or a special material.
The secondary material means that the raw material has been used once, except for high-pressure granulation. In the high-pressure granulation, most of the imported large parts are used. If the imported large parts are industrial films, they are not exposed to the wind and the sun, so the quality is also very high. Well, the processed particles have good transparency, and should be judged according to the brightness of the particles and whether the surface is rough.
The tertiary material refers to the raw materials that have been used twice or more. The processed particles are not very good in terms of elasticity and toughness and can only be used for injection molding.