Site web de notre betonniere: www.concrete mixer.cc
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Site web de notre betonniere: www.concrete mixer.cc
LM in measuring context means linear meter. In Chinese, 延米.
As i understand, the irregular shape long items prefer LM rather than meter to calculate the material quantity. To simplify it, we can imagine pulling the material until it is straight in a line. The length in such situation will be the LM. It is often used during calculation of funitures like cabinet.