High Quality For Tungsten Carbide Guide：

（1）Tungsten carbide nib：high quality WC powder

（2）Manufacturing equipmen：

Accurate angle and internal diameter grinding machine

Accurate angle and internal diameter polishing equipment

Accurate internal and external grinding machine

Accurate surface grinder

Accurate surface-grinding machine

（3）Quality of products： 

Concentricity （ID to OD）：≤0.01mm

Roundness For Hole：≤0.005mm

Roughness For Hole：Ra 0.02

（4）JIAHE carbide，pledge of quality