For handmade sink, we can follow your size and design.
Usually handmade sink with drainboard can be Under mount or Top mount design. And the Radius corner can be Straight Corner R0 or Small Round corner R10.

These handmade sinks are high quality series with elegant design, thickness 1.2mm is common standard, and we can make 1.0,1.5mm,3mm or 4mm etc.