Please capitalize where necessary: dha does not colour other surfaces than the stratum corneum, i.e. not the mucous membranes.
A: DHA does not colour other surfaces than the stratum corneum, i.e. not the mucous membranes.

Q: a hemangiopericytoma is metastatic vascular tumor arising from the pericyte cells, where hemangio refers to the blood vessels, and a pericyte is a type of connective tissue cell.

A: A hemangiopericytoma is metastatic vascular tumor arising from the pericyte cells, where hemangio refers to the blood vessels, and a pericyte is a type of connective tissue cell.

Q: looking which airport for saint maur des fosses?
A: Looking which airport for Saint Maur des Fosses?

Problem: it hurts to admit i did something wrong.
Can you repeat this sentence, but capitalize it?
Answer: It hurts to admit I did something wrong.

Text: heavy duty fixed caster from welded steel housing, plate fitting, vulcanized polyurethane tread, cone ball bearing, wheel- 250mm, 2270kg

Correct capitalization: Heavy duty Fixed caster from Welded steel housing, plate fitting, Vulcanized Polyurethane tread, cone ball bearing, Wheel- 250mm, 2270KG

Q: about n1 : chinese characteristics jewelry pouches(10 pieces per group)
A:
About N1 : Chinese Characteristics jewelry pouches(10 pieces per group)