氢化密缝彩砂

密缝专用彩砂，0.35-1.5mm，健康环保 0级耐黄变，高油膜，超平缝擦洗

Special colored sand for tight seams, 0.35-1.5mm, healthy and environmentally friendly, grade 0, resistant to yellowing, high oil film, ultra flat seam scrubbing