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See Chinese contents: GB/T 43770-2024 GB/T 43770-2024: Specification for indoor LED displays
This document specifies the classification, requirements, test methods, inspection rules, as well as marking, packaging, transportation and storage for indoor LED displays (hereinafter referred to as “displays”). This document applies to full-color large pixel pitch, meddle pixel pitch, fine pixel pitch, mini pixel pitch, and micro pixel pitch display products that display graphics, text, video and other information.
