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| KA/T 143-1986 (English Version) |
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Detail of KA/T 143-1986
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Introduction of KA/T 143-1986
本标准规定了目前我国煤矿普遍使用的9种架型、131种规格的巷道金属支架，其内容包括梯形刚性支架，梯形、半圆拱形、三心拱直腿、三心拱曲腿、马蹄形、圆形、方环形和长环形的可缩性支架，并给出了支架的结构图及有关参数。附录A中给出了25U , 29U和36U型钢可缩性支架的连接件-一卡缆图及主要尺寸。附录B中列出了巷道金属支架的适用条件。
本标准可供煤炭生产、设计、制造及科研部门使用.
Contents of KA/T 143-1986