Xov xwm kev lag luam
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Hais txog Castor
Castors yog ib lo lus dav dav, suav nrog cov castors txav tau, ruaj castors thiab txav tau cov castors nrog nres.Cov castors txav tau, tseem hu ua universal log, tso cai rau 360 degrees ntawm kev sib hloov;Taag castors tseem hu ua directional castors.Lawv tsis muaj rotating qauv thiab ...Nyeem ntxiv
