Ku habboon in lagu dhejiyo taarikada dhumucda kala duwan iyo tuubooyinka (0.5mm -6MM). U adeegso qoriga pneumatic ama qoryaha wax lagu shubo si aad u riyooto mar, ku habboon oo adag; Beddel lowska alxanka dhaqameed, si aad u sameysid xaashida biraha, tuubbo khafiif ah oo alxanka lagu buuxin karo, lowska alxanka kuma habboon.
