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本帖最后由 tina50 于 2024-1-13 16:47 编辑
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Non-friable (bonded) asbestos
Non-friable asbestos products are made from a bonding compound (such as cement) mixed with a small proportion (usually less than 15%) of asbestos. Non-friable asbestos products are solid, rigid and non-friable, and cannot be crumbled, pulverised or reduced to powder by hand pressure. The asbestos fibres are tightly bound in the product and are not normally released into the air.
还是不明白mulch里怎么有这东西呢 |
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