Шариковая сталь из нержавеющей стали 304/201/440 твердый стальной шар 0,5 мм–50,8 мм барабан для катания производители оптом

0.5mm, 0.6mm, 0.8mm, 1.0mm, 1.4mm, 1.5mm, 1.588mm, 1.7mm, 1.8mm, 2.0mm, 2.2mm, 2.381mm, 2.5mm, 2.8mm, 3mm, 3.175mm, 3.5mm, 4mm, 4.5mm, 4.763mm, 5mm, 5.556mm, 6mm, 6.35mm, 7mm, 7.144mm, 7.5mm, 8mm, 8.5mm, 8.7mm, 9mm, 9.525mm, 10mm, 11mm, 12mm, 12.7mm, 13.5mm, 14mm, 14.288mm, 15mm, 15.875mm, 17.4mm, 18mm, 19mm, 20mm, 22mm, 23mm, 24mm, 25mm, 25.4mm, 28mm, 30mm, 32mm, 35mm, 38mm, 40mm, 45mm, 50mm