The material includes insulating material, conductor material, and shielding material. Insulation such as polyvinyl chloride (PVC), irradiated cross-linked polyvinyl chloride (XL-PVC), irradiated cross-linked polyethylene (XL-PE), Halogen-free, silicone rubber, Teflon Telflon and more. The environmental protection of insulating materials is currently mainly based on the EU RoHS environmental protection directive and the EU's environmental protection regulations for children's toys, which do not contain 6P (Non-6P), that is, phthalate-free. Now the most environmentally friendly is low-smoke and halogen-free, completely free of halogen elements. The most common conductor material is copper. Copper has bare copper (called brass, red copper), tinned copper, silver-plated copper wire, etc. These types are essentially copper, but the surface is plated with other substances. Copper clad aluminum and copper clad have just appeared on the market. If the electrical performance requirements are high, naturally copper is the best. The environmental protection of conductors is mainly required to be free of heavy metals (RoHS). Concerned about surprises Label: Material selection for environmentally friendly wire and cable Previous: Analysis and Application of CNC Machine Tool End Milling Tool Next: Decoration Hardware Purchase Tips
Ningbo GDoor interior Automatic Door Operators are engineered by Ningbo GDoor R&D team. Except for the elegant appearance, interactive Automatic Sliding Door operators own unique interactive system which can drive two door leafs at the same time by one motor. And there is an important requirement for the door leafs: single door leaf cannot overweight to100kg. Ningbo GDoor household balance door operators are small-sized balance door operators sharing the same functions with super large balance door operators. Household balance door operators own double door openers which open two door leafs at the same time. And the operating system has self-test function to test the operating status incase of troubleshooting.
Interior Automatic Door Operator Interior Door Operator,Automatic Door Operators,Handicap Door Operators,Commercial Door Operators Ningbo Gdoor System Control Technology Co., Ltd. , http://www.gdoor-cn.com