According to Code requirements for installing vertical piping, what minimum support spacing must be used for screwed pipe?

windy city oil field, karamay, xinjiang, China

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Worker in a carpentry shop measures plywood for cutting

Apartment Fusebox Installation by Caucasian Electrician in His 40s. Residential Home Electric System Theme.

Joyful young man construction worker holding mobile phone and smiling while standing by the table with laptop