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Ningbo Beilun Huashen Yulu Set-Screws Co.,Ltd.
宁波华申羽路紧固件有限公司
Premium Supplier
8 Years
Main Products
Inner hex lock screws
Stainless steel lock screws
Alloy steel lock screws
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(DIN 915 - 1980)
material
Alloy Steel
grade, rigidity
grade 12.9
Coating
black oxide coating
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GB /T 79 - 2007
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