Cleaning cloth has core of sponge material with upper and lower layers of microfiber material which have different structure and are glued to core with adhesive layers which have open pore structure
摘要
<p>The cleaning cloth has a core (4) of sponge material with upper and lower layers of microfiber material (2). These have a different structure and are glued to the core with adhesive layers (3) which have an open pore structure.</p>
