日韩少妇视频在线直播,91免费精品国自产拍在线可以看,国产精品亚洲欧美丝袜,97免费超碰在线公开,www.成人免费在线,制服丝袜亚洲精品日韩有码,日本午夜伦理在线观看,日本不卡在线视频中文国产,亚洲区一区二区三区视频

The stainless steel floor spring door has a double-door structure with an adjustable door opening width of 1.5-2.4m. It is suitable for shopping mall entrances and office building halls to improve traffic efficiency. The two sets of floor springs work synchronously and the closing speed is consistent to avoid door leaf collisions.

Material characteristics: The door frame is made of 201 stainless steel, with a thickness of 1.0mm, and the welding joints are polished smooth; the door glass is 6mm tempered glass with high light transmittance; a handle can be added for easy push and pull, and is suitable for various public places.