。 Brez ogljikovega krtača, nizke stopnje napake in neprekinjenega delovnega časa. 。 Velik navor, močna moč, izboljšanje učinkovitosti brušenja % zgoraj. 。 Stroj lažji, izboljšajte delavce, ki upravljajo udobje. 。 Brushless change without carbon brush and more efficient, continuous working time is long, because the inside of the magnetic field is not electricity, is electricity also has a magnetic field, so that higher speed, more power, so it's really good, but not the same brand, quality is different also, some abroad have carbon brush is really good, but this is just a part of price is high, but take the middle price or domestic brushless may be a little better, but the price is more expensive than a brush, use Linija še vedno, je lahka, mi ni treba. 。。。 Delavci, so rekli tudi lahko.
