1. Product Overview GQZ-FSW-RED-BULK is the bulk wholesale packaging model of GQZ-FSW-RED-6P red 6-pin waterproof limit travel switch under GQZ brand. Adopting standardized industrial carton bulk packaging, it is tailored for machinery manufacturers, agricultural equipment factories, skate wheel processing plants and global distributors with large-scale procurement demands. The single switch unit features integrated injection molding shell + full silicone internal sealing