Roadway air doors by this document are considered for haulage tracks. Their style of construction allows the direct joining of a similar air door or of a travelling track air door as to DIN 21631. The air doors are without pressure reduction.
DIN 21632:1993由德国标准化学会 DE-DIN 发布于 1993-01。
DIN 21632:1993 在中国标准分类中归属于: D97 矿山支护设备,P48 通风、空调工程。
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