Need to Purchase Tungsten Carbide Sample Parts

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Hi
I am looking to Purchase Tungsten Carbide Sample Parts
It is expected to be made for subsea valves where low friction and wear resistance is important. The samples must be polished perfectly. After the lab experiment, we are expecting to order 80 pcs per month till the end of this year in different sizes for subsea valves. We appreciate the fastest production + delivery and therefore we can pay extra for that. I have already written that at the first step, we only need 5 pcs (rectangle) + 5 pcs (ball sample)
For ball sample : (R=2 mm D=4 mm h1=2 mm h2=4 mm H=6 mm