Advance Inspection Machine can detect the defects such as convex, bump, deformation, holes, bubbles, cracks, bulging, scratching, expansion, irregularities, stains, scratches, coke, peeling, foreign parties, folds in sheath, sags, overlapping, which mainly caused by some factors like improper temperature, raw material impurities, product mold uncleaned completely during the high-speed extrusion production lines.