30mW FTTH Optical Fiber Tester Pen Type Red Ftth Laser Optical Fiber Light 10mW Visual Fault Locator Red Light Pen 5-30Km Rang

30mW FTTH Optical Fiber Tester Pen Type Red Ftth Laser Optical Fiber Light 10mW Visual Fault Locator Red Light Pen 5-30Km Rang

Historie cen