Jiangxi Shengnan hardware Co., Ltd.
江西盛南五金有限公司
| material | Alloy Steel |
| grade, rigidity | grade 12.9 |
| Coating | black oxide coating |
| 材料：碳钢、不锈钢、合金钢，表面处理：按照客户要求，规格：齐全 Material: oarbon steel, stainless steel, alloy steel, Surface treatment: according to customer's demand, Size: complete |
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