RF II Series K = 80 fast / standard response, standard coverage pendent sprinklers hidden as an optional component Wuhan Water spray product, RFII family standard response (5mm glass bulb) concealed hanging sprinklers can be used silicone dust seal airtight member (see FIG. 5). Dust airtight seal for blocking the upper space of the ceiling air and dust flow through the cover plate to the sensitive area under the ceiling. EC-HSW series, 3mm glass bulb sprinklers can provide rapid response thermosensitive expand coverage fast response (QREC) sprayed on the table listed in Table B or C in a variety of large coverage. Flush mount EC-HSW series large horizontal sidewall sprinkler can cover a two-piece, labeled 40 (3/4 "NPT DN20) embedded decorative plate, adjusting the amount of embedded embedded decorative plate is 12.7mm. adjusting the amount of embedded decorative plate can be reduced cutting precision short tube connection nozzle. Wuhan Water spray products, a Anyuan electromechanical (certified), water spray products from Hubei Jiangxia create Anyuan Electrical Equipment Co., Ltd. to provide. Hubei Chong Anyuan Electrical Equipment Co., Ltd. (www.hbcay119.com) (www.hbcay119.com) is a leader in Wuhan, fire protection equipment, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum Limits to meet customer needs. In creating Anyuan electromechanical leadership with the staff warmly welcome all inquiries negotiations to create create a better future for electromechanical Anyuan.