伸缩门特点：
Features of expansion door:
1、智能红外线防爬装置：遇人爬门时,系统会马上报警,从而保障工厂内的财产安全。
1. Intelligent infrared anti climbing device: when people climb the door, the system will alarm immediately, so as to ensure the property safety in the factory.
2、特种型材：在高硬度锌铝合金型材上加上不同几何形状筋骨能大大增强其强度，表面经特殊电泳处理，光泽无限，不易粘尘，不被污染气体腐蚀，决不生锈，保新期长。
2. Special profile: the strength of high hardness zinc aluminum alloy profile can be greatly enhanced by adding different geometric shapes and ribs. The surface is treated by special electrophoresis, and has unlimited luster, is not easy to stick to dust, is not corroded by polluted gas, and will never rust and keep a long new period.
3、工程塑料：门体主要塑料件（如管材与管材间的连接，塑料件，门体活动部件等等）采用高质量工程塑料（如PC、PA），韧性高，耐冲击,抗扭曲，耐磨，耐冻，耐晒，不易老化，使用寿命长，免受风雪雷电、日晒雨淋之苦。
3. Engineering Plastics: the main plastic parts of the door (such as the connection between the pipe and the pipe, plastic parts, door moving parts, etc.) adopt high-quality engineering plastics (such as PC, PA), high toughness, impact resistance, anti distortion, wear-resistant, freeze-resistant, sun resistant, not easy to aging, long service life, and avoid the hardships of wind, snow, lightning, sun and rain.
4、智能红外线探头防碰撞装置：门体在关闭过程中遇人或异物30-50cm可自动返回运行，从而保障车辆及行人的安全。标准结构:门排内空（即前后相临两大弯主管之间的距离，不含主管尺寸）采用伸缩门标准尺寸mm（参照国外技术），保证交叉管坚固，并大大减少运行噪音。
4. Intelligent infrared probe anti-collision device: when the door body encounters people or foreign objects 30-50cm during the closing process, it can automatically return to operation, thus ensuring the safety of vehicles and pedestrians. Standard structure: the standard dimension mm of expansion door (refer to foreign technology) is adopted for the gap in the door row (i.e. the distance between the front and rear main pipes facing two major bends, excluding the size of the main pipe). The standard dimension mm of the expansion door is adopted to ensure the solid cross pipe and greatly reduce the operation noise.
5、不锈钢伸缩门，不锈钢电动伸缩门主体结构特点：不锈钢采用国际标准不锈钢原材料，经过特殊工艺制管进行折弯焊接定型制成门体。门体永不变型坚固耐用。门体用大小连杆连接而成伸缩门，大连杆连接型式为古币梅花式，小连杆连接成菱保定平面设计培训 保定空调维修 保定管道通风 包装盒定做 化粪池模具 废旧电缆回收 不锈钢铸件 型式道闸，美观大方，坚固耐用。不锈钢伸缩门活动部位特点：伸缩门每个活动部位环节均采用不锈钢管，轴，轴瓦，不锈钢螺母，尼龙衬垫组装，组装时每个环节点加注高级润滑油，无噪音伸自缩自如。
5. Stainless steel expansion door, stainless steel electric expansion door main structure characteristics: stainless steel adopts international standard stainless steel raw material, through special process pipe bending welding and shaping to make door body. The door body is never changeable and durable. The gate body is connected with large and small connecting rods to form a telescopic door. The Dalian bar connection type is the old coin plum blossom type, and the small link is connected into the rhombic type gate, which is beautiful and generous, and durable. Features of movable parts of stainless steel expansion door: stainless steel pipe, shaft, bearing bush, stainless steel nut and nylon pad are used for assembly at each movable part of the expansion door. During assembly, each ring joint is filled with advanced lubricating oil, and it can stretch freely without noise.