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Shanghai Yongyi Fasteners Co., Ltd.
上海永矣紧固件有限公司
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8 Years
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(GB 32.1 - 1988)
material
Alloy Steel
grade, rigidity
grade 12.9
Coating
black oxide coating
规格齐全,现货供应,可以支持各种表面处理,也可以根据客户要求来图来样加工订制,欢迎广大新老客户来电洽谈合作!
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