nam châm mạnh mẽ hấp thụ khối đen đá trang thiết bị giảng dạy sắt hấp thụ hạt thép hấp thụ hình chữ nhật tròn nam châm mạnh mẽ.

Color classification.

Rectangular 50x10x2 with double-sided adhesive (10) Rectangular 20x10x4 (10) Rectangular 10x5x3mm (50) Rectangular 40x20x5mm (5) Rectangular 20x10x10mm (5) Round 4 x 1.5MM (50 only) Round 5 x 2 (100) Round 6 x 2 (50) Round 8 x 2MM (20) Round 10 x 2MM (50) Round D10x1.5 (50) Round 10 5MM (10) round 10 x 10MM (10) round 15 x 2 with double-sided glue (10) round 15x3 with holes 4 (10) round 15x5-5 (10) round 15x5mm (10) round D25 x2mm with double-sided glue (10) round 30 x 5 (1 only) round 30 x 5 with holes 5MM (1 only) round 30 x 5 with holes 6MM (1) rectangular 50x5x3 (10) ring magnet (1) Buck ball plus. 5MM (216)