Big and Deep Tungsten cemented carbide bushings, sleeves, rings with Helical Grooves

Big and Deep Tungsten cemented carbide bushings, sleeves, rings with Helical Grooves.

   Under the efforts of R&D team, after many  times of failure and trial, were now able to make the helical grooved rings, sleeves, bushings with big diameter and long length ( depth) sucessfully, now, our helical grooved  carbide rings, sleeves can be with 400 mm diameter and 350 mm depth.

  Cheers!