Someone just handed me a box of NMR tubes from shigemi as a brand. They don't exist as a manufacturer anymore. Does anyone know if shigemi tubes (as in the fancy low volume tubes) ever come with rounded bottoms? I've never worked with one and the only pictures I can find are all flat bottom tubes.
I think someone just put a different type of (perfectly adequate, but not $100+ each) tubes in this box and I'd like to confirm. They all say 526-PP which is a wilmad product code.