浙江快达ZSTM型水幕喷头(水平、下垂、檐口)ZSTM Water-curtain-type nozzle(horizon,drooping and eaves opening)流量系数：K=28,40,52,80,115,200连接螺纹：R1/2",R3/4", 形式：下垂、侧喷(单口、双口) 浙江快达ZSTM型水幕喷头(水平、下垂、檐口)ZSTM Water-curtain-type nozzle(horizon,drooping and eaves opening)流量系数：K=28,40,52,80,115,200连接螺纹：R1/2",R3/4", 形式：下垂、侧喷(单口、双口) 浙江快达ZSTM型水幕喷头(水平、下垂、檐口)ZSTM Water-curtain-type nozzle(horizon,drooping and eaves opening)流量系数：K=28,40,52,80,115,200连接螺纹：R1/2",R3/4", 形式：下垂、侧喷(单口、双口)