金属推拉门 　　该产品具有保温、防风、防盗等功能，一般作为外门使用，适合洞口尺寸较大的建筑工程。 门体系统：门板一般采用双面彩板，中间填充聚胺脂或聚苯，可开设透光窗和小门；轨道采用优质冷扎钢板加工形成以及铝合金型材，表面烤漆或静电喷涂 ; 吊轮与轨道良好的配合保证了门体的平稳运行。可设下滑道或侧滑道+。 传动系统：一般为手动，也可配电动装置。

The metal push-pull door
This product has functions of thermal insulation, windbreak, guarding against theft and etc. It is normally used for outside door and fit of the building with larger size gateway.
The door-body system
The double-faced color plate is normally used for the door. In the middle of the door-body polyurethane or polyphenyl should be filled. The pervious window and small door can be set. The carbon steel plate and aluminum alloy model material are produced and formed the slideway. The surface of the slideway is treated with bake paint or electrostatic painting. The good coordination of wheel sling and slideway can guarantee the smooth motion of the door-body. It can also be set with down or side slideway.
The driving system
It is normally hand-operate. But it can be disposed with motor-driven also.

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