diy stainless steel spacer beads square chamfering beads hexagon beads rectangular beads cutting beads non-hole beads multi-surface diamond beads

square chamfering bead through hole square beads through hole square non-porous beads square chamfering beads without holes square through hole rectangular beads through hole hexagon beads through hole hexagonal rectangular column through hole powder casting beads

2.0*2.0 * 1.3mm 2.5*2.5 * 2.0mm 3*3 * 2.0mm 4*4 * 2.0mm 5*5 * 2.0mm 6*6 * 3.0mm 8*8 * 3.0mm 4*4 * 2.5mm 2.5 * 2.5mm 3 * 3mm 4 * 4mm 5 * 5mm 6 * 6mm 8 * 8mm 3*7 * 2.0mm 3*6 * 2.0mm 2*6 * 1.5mm 3*3 * 1.5mm 5*5 * 3.0mm 6*6 * 2.0mm 5*8 * 1.8mm 3.0 * 1.2mm hole 4.0 * 1.8mm hole