Shenzhen Xin Herald professional production GB955/DIN137B wave spring washers. Also known as wave washers, wave washers, two wave washers, one with regular wavy circular sheet. Generally used to prevent loosening, ease the impact, need to have good flexibility and impact resistance, etc. Specifications: Φ3-Φ30 Material: 65Mn, stainless steel SUS304.301 other domestic and imported high-quality steel. Finish: black, zinc and so on. Common specifications available inventory, and provide non-calibration. Production of sophisticated technology perfectly reasonable prices. Look forward to your inquiry willing to cooperate with you to create brilliant!