1. Poj niam xov 113mm PDC me ntsis nrog 50mm xov siv rau cov mining thiab dej drilling;
2. Peb kuj muab 75mm, 94mm, 133mm, 153mm, 175mm, 215mm thiab customized ntau thiab tsawg;
3. Peb lees txais cov qauv txiav txim thiab muab cov khoom zoo nrog tus nqi sib tw.