德国viZaar工业内窥镜，对料管内孔进行探伤、裂纹、气孔检测，确保每条料管内孔品质优良

German vizaar industrial endoscope, inspect flaw, crack, air hole of the barrel inner bore, to assure every barrel inner bore good condition.

检测范围Inspection range：φ6X4000mm

放大倍率Enlarge ratio:4-20 times

有效相素Effective pixels:440000