Please see to it that the goods we ordered are shipped as soon as the covering letter of credit ______ you.
D
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光幕安装正确,两片光幕在门关闭时距离应保持8-10MM;光幕离轿门地坎距离为8-10MM;两片光幕高度相差不超过1MM;垂直度不大于2MM;光幕所有装配孔都应和门扇固定
GB16899－1997《自动扶梯和自动人行道的制造与安装安全规范》规定，倾斜角为300的自动扶梯，额定速度不得超过0.75m/s
安全钳契块与导轨工作面间隙为1-4MM
扶梯驱动链条在空载状态下松边应有8-12MM的下垂量
用电阻法测量故障时，一定要断开电源不可带电检测
