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Bolts and Screws
1. Standard: DIN, ANSI, GB and non-standard;
2. Thread: full or half;
3. Surface: full shape, no burr and nice flatness;
4. Raw Material: bought from Group Company, 100 tons per batch, with stable quality and completive price;
5. Processing: by cold-forging machines, together with precise moulds and punch pins;
6. Length: various.
bolts and screws