And the main products we manufacturing are: electric hammer, electric drill, wall hole saw, metal hole saw, woodworker hole saw, cementedcarbidedrill etc.
公司生产的主要产品有：电锤电钻墙璧开孔器，金属开孔器，木工开孔器，硬质合金钻头等系列。
2
Practical tests show that the performance of cementedcarbide anvils, coated blade and drill bits with graded structure developed in this dissertation are superior to those with regular structure.