stonylab Glas 3-weg Glazen Distilleeradapter, Borosilicaatglas Drieweg 105° Hoekadapter met 24/40 Verbindingen voor Laboratorium lab Levering

The three way glass adapter piece looks functional but has 5 micro fractures in the lower joint. From what i understand this is from the piece cooling way to fast. The grinding is fine. All of my pieces from stonylab / China have small scratches on them. All three have single scratches in random places about a cm or 1/2 inch long. They look no wider than a piece of hair off your head. The angle of my two complementary ‘3 ways’ are off. When combined i got a bit of a “V” instead of an “H” on the verticals.I have gotten other companies pieces free of any scratches. Laboy pieces were perfect when i could get them. Theirs were damaged or lost in customs and took 2 to 3 months to get, yes months. This happened with 3 different orders. Stonylabs shipping time has been excellent. I dont think i will return the piece because it should be farther from the heat source in my projects, it probably wont break. Stonylabs, Labasics and Qworks seem to send pieces from the same source company in China. Jan 2023