Dear DirectorHow are you ? Wish everything well with you and your esteemed company ! Zhu Zhou Grewin Tungsten Carbide Tools Cor,. Ltd is a very glad know you are specializing in Tungsten Carbide .As a professional manufacturer of tungsten carbide products, such as cold forging dies ,insert ,rods ,strips, ball ,button bits , saw tips, brazed tips ,mining tools , and son on . Kindly please refer to attach catalogue for your reference . any comments by return will be much appreciated . wish we will promote business as well as friendship!Best RegardsJessie