noun
way of handling; how to handle
Refers to the method or manner of dealing with something, often used in instructions or manuals.
この機械の取り扱い方を教えてください。
Please tell me how to handle this machine.
取り扱い方を間違えると危険です。
It is dangerous if you handle it incorrectly.
取り扱い is the noun 'handling' or 'treatment', while 取り扱い方 specifically means 'the way of handling'.
Compound of 取り扱い (handling, from 取り扱う 'to handle') + 方 (way, method).