... fighting, Glass bulb sprinkler feature: 1) Pendent/ Upright/Sidewall sprinkler 2) Concealed sprinkler Fire Sprinkler , Fire equipment , Glasas blub sprinkler Features: 1) Red/Yellow/Green ... horizontal type, sidewall pendent type f ) ZSTD- 15/20 Concealed sprinkler g ) ESFR ; ZSTW -15/20/25 ; ZSTM -15/20Packing: 200pcs ...