The published 71 mm product image from Changhui Wire Spool Manufacturer shows an I-shaped plastic spool made of PS and includes samples in different colors. Color can be a convenient visual reference for distinguishing materials or batches, but it does not replace specification approval. Size, bore, barrel, and flange structure should still be checked together with the winding material and the operating conditions of the equipment.
During sample approval, appearance color, key dimensions, bore form, and sample identification can be recorded in one confirmation document. If different colors are intended to distinguish wire types, process stages, or internal categories, the user should define that relationship clearly rather than assuming a purpose from the image. For equipment use, an empty-spool check can be made first to review positioning, available rotation space, and relevant contact points.
Before use, inspect the flanges, barrel, and bore for completeness and cleanliness, and look for visible conditions that could affect installation or contact with the wound material. A trial under controlled conditions can then confirm rotation and winding before regular operation. Combining the physical sample, dimensional record, and actual operating conditions makes the selection of a 71 mm plastic spool clearer. More related information is available on the Changhui Wire Spool website.
