Material: Carbon steel
Water-free and oil-free smooth and shiny surface, special for competition
Uniform size and fine craftsmanship, 0 defect rate, error size plus or minus 0.3mm
Finely packaged and shipped out, the surface is oil-free and water-free, super clean
Cannot be used for machinery, industrial supplies,
The product has high brightness, smooth and flat, not easy to rust, waterproof and oil-proof
Whether standard parts: Non-standard parts
1135 grains per kilogram of 6 mm
6.35 mm/kg 957 grains
7 mm per kilogram 715 grains
7.5 mm/kg 581 grains
478 grains per kilogram of 8 mm
399 grains per kilogram of 8.5 mm
9mm a kilogram/about 335 grains
10mm a kilogram/about 245 grains
11mm one kilogram/about 183 grains
12mm a kilogram/about 140 grains
13mm a kilogram/about 111 grains