<p><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">When used with a polyurethane lapping pad, PDFB-3 μm delivers stable performance, high fine-lapping efficiency, and excellent surface quality. It achieves a removal rate of 0.55–0.65 μm/min and surface roughness of Ra ≤ 3 nm, with a shallow damage layer and scratch-free surface after lapping. Compared with comparable international products, it offers approximately 40–50% higher efficiency, lower cost of use, and improved TTV, warp, and bow after high-removal-rate lapping.</span></p><p><br/></p>