Dear Sir or Madam:
we can supply the contacts made by Copper Tungsten products(W content is from 50% to 95%) welded with Pure Copper or its alloys. The drawing attached is a contact made by Copper tungsten(W:80%,Cu:20%) welded with pure copper rod(99.95% Cu).The welding seam is perfect and have excellent quality.
Please send us your detail requirements and we will give you our best quoation as early as possible,
Yours sincerely
John