1. Isu tinopa alloy grinding mavhiri uye grooving mavhiri ehukuru hwakasiyana-siyana hwekukuya uye grooving ye rubber rollers. Ndokumbira utibvunze nezve vhiri rakanakisa rekushandisa kwako.
2. Sarudza chiyero chakakodzera chechidimbu maererano nemamiriro ezvinhu eCots ane kuoma kwakasiyana, iyo inokodzera kukwirira kwepamusoro-soro uye grooving yemabhedha.