304/316/201 Stainless Steel Spring Washers Heavy-Duty & Light-Duty Thickened GB93 Product descriptions from the supplier Stainless Steel Construction: Ensures durability and resistance to corrosion for long-lasting use. Heavy-Duty Design: Suitable for demanding applications requiring robust fastening solutions. Light-Duty Thickening: Provides enhanced strength and stability for secure fastening. GB93 Standard Compliance: Meets national standards for quality assurance. Wide