Ruian Fengtai Standard Co., Ltd.

瑞安市峰泰标准件有限公司

Ruian Fengtai Standard Co., Ltd.

瑞安市峰泰标准件有限公司

(YJT 7011 (M1308/JV/DHI))

material	High-carbon steel
Coating	oxidation
反向孔用挡圈65Mn,硬度HRC44-52, 表面氧化处理

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