1) T-ZST15/ 20 series thermo bulb sprinkler 2) T-ZSTD concealed sprinkler 3) ZSTBS-20EC horizontal side-wall type sprinkler 4) ZSTX-20A large-caliber and quick-response sprinkler 5) ESFR sprinkler 6) ZST-20LD large-drop sprinkler 7) T-ZST-15 fusible alloy sprinkler 8) ZSTM drencher head 9) ZSTWC type meduim-speed water fog head 10) ZSTWB type high-speed water fog head 11) Foam sprinkler