1.j boluti .A tun pe o (idọti ìdákọró, ilẹkun ipilẹ, boluti ilẹ) 2.We lo Awọn ohun elo wọnyi: iron carbon, 45 # steel, 40 Cr, 35CrMo; 3.Surface Ipari: zinc palara tabi dudu tabi pẹtẹlẹ tabi HDG; 4.Size: M6-M64; ipari 12mm-3000mm 5.Grade: 4.8 8.8 10.9 12.9 6.Standard: DIN, JIS, BS, ASME ...
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