JD2-300-89型 船用红光降落伞信号 Model JD2-300-89 Marine red flare Parachute Signal 用于船舶、救生艇和救生筏长距离的遇险信号 For long range distress signaling from ships,lifeboats and liferafts. 发光强度 ≥30，000cd Luminous Intensity 燃烧时间 ≥40s Burning Period 到达高度 ≥300m Reach An Altitude
