Wenzhou Fengding Fastener Manufacturing Co., Ltd.
温州市丰鼎紧固件制造有限公司
| material | Carbon steel |
| grade, rigidity | grade 10.9 |
| Coating | black oxide coating |
| 材料：碳钢；表面处理：按照客户要求；等级：4.8、8.8、10.9、12.9；公称直径：M3-M20；公称长度：5-300mm Material: carbon steel; Surface treatment: according to customers\' requirements; Grade: 4.8, 8.8, 10.9, 12.9; Nominal diameter: M3-M20; Nominal length: 5-300mm |
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