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Fasteners (standard parts) professional knowledge daquan...


Release time:

2020-11-19

The content of this article is mainly divided into three parts: 1. Classification of fasteners 2. Identification and inspection of threads 3. Material requirements and heat treatment requirements for bolts, screws and studs......

The content of this article is mainly divided into three parts: 1. Classification of fasteners 2. Identification and inspection of threads 3. Material requirements and heat treatment requirements for bolts, screws and studs......

Key words:

Plate nail