空气式延时头型号说明装箱数LA2-DT0正面安装延时通0.1~3S200LA2-DT2正面安装0.1~30S200LA2-DT4正面安装10~180S200LA2-DS2正面安装1~30S200LA3-DR0正面安装延时断0.1~3S200LA3-DR2正面安装0.1~30S200 空气式延时头 型号说明装箱数LA2-DT0正面安装延时通0.1~3S200LA2-DT2正面安装0.1~30S200LA2-DT4正面安装10~180S200LA2-DS2正面安装1~30S200LA3-DR0正面安装延时断0.1~3S200LA3-DR2正面安装0.1~30S200LA3-DR4正面安装10~180S200新型空气式延时头型号说明装箱数LA2-DT0正面安装延时通0.1~3S200LA2-DT2正面安装0.1~30S200LA2-DT4正面安装10~180S200LA2-DS2正面安装1~30S200LA2-DR0正面安装延时断0.1~3S200LA3-DR2正面安装0.1~30S200LA3-DR4正面安装10~180S200