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Shanghai Shangdian Washer Co.,Ltd.
上海上垫垫圈有限公司
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14 Years
Main Products
Washers
Spring washers
Square washers
High-strength washers
Lock washers
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(DIN 128 (B) - 1987)
material
High-carbon steel
Coating
black oxide coating
材料:弹簧钢,不锈钢;规格齐全;表面处理按客户要求
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