Ridges occur in humid regions along belts of resistant rocks . 在潮湿地区,山脊沿着耐蚀的石带发育。
2.
Compression - resistant rock wool board : used for roof heat preservation of airport lounge and large workshop as it could bear huge loads 耐压岩棉板:能承受巨大的高负载。适用于候机室、大型车间等房顶保温。