12.7mm 2.8kg / Approx. 335 grains 27mm 2.8kg / Approx. 4mm 2.8kg / Approx. 10000 grains 14mm 2.8kg / Approx. 250 grains. Material: Carbon Steel Q235. Smooth Surface Without Burrs, Easy and Smooth Installation, Stable Quality, Strong Interchangeability.
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