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Flattened stem
Supply of glass bulb, soft material glass bulb, quartz glass bulb sales, spherical glass bulb, quartz glass transition glass bulb
GD-708 ultraviolet phototube, ultraviolet photosensitive tube, ultraviolet detector, flame detection, fire alarm
GD-708P ultraviolet phototube, ultraviolet photosensitive tube, ultraviolet detector, flame detection, fire alarm
UV sensitive tube GD-708 UV non-sensitive tube UV detector Flame detection Fire alarm
GD-35 UV photoelectric tube UV non-sensitive tube UV detector Flame detection Fire alarm