Saige Professional Carbon Steel Bearing Ball Factory Anti Abrasion Mirror Polished Steel Spheres 4.5mm 8mm 10mm 12mm Multiple Specifications

Saige Professional Carbon Steel Bearing Ball Factory Anti Abrasion Mirror Polished Steel Spheres 4.5mm 8mm 10mm 12mm Multiple Specifications. Made of standard 10# / 15# carbon steel Pure raw material, no scrap steel mixed Stable carbon content, uniform internal structure No impurities, less cracking and no chipping. Perfect roundness, no oval or out-of-round balls Smooth polished surface, no scratches, no pits, no pores Tight size tolerance, no stuck or loose fitting. Good toughness, not easy to crush or flatten under pressure High wear resistance, long service life Good impact resistance, not easy to deform Excellent for cold heading and stamping processing. Much more cost-effective than stainless steel / bearing steel balls Industrial general grade, reasonable price without overpaying Big discount for bulk order, ideal for long-term purchasing. Full size range: micro, small, medium and large sizes in stock Custom non-standard diameter and special hardness available Support black oxide, zinc plating, anti-rust oil treatment. Caster wheel / furniture roller / luggage roller balls Cold heading blank for rivets and fasteners Valve, pump and hydraulic fitting steel balls Slide rail, toy and mechanical transmission balls. Stable dimension, no size deviation in bulk shipment Sufficient stock, fast delivery and on-time lead time Support small trial order and large volume long-term order. Exact size as marked, no false specification No inferior polished defective balls Strict sorting, remove all deformed and unqualified balls Stable quality for repeated orders, no quality fluctuation.