China fasteners fasteners ikutsegula chidebe chokhala ndi mabawuti amphamvu kwambiri a hex, ndodo ya ulusi, bawuti ya stud ZYL mtundu wapamwamba kwambiri hexagon mabawuti DIN931 DIN933, zomangira socket DIN912, flange mabawuti din6921 DIN912 hex socket screws, Allen mabawuti M10 M12 M16 M20 M24 M27 makina ozizira Kupanga ma bolts a Hex
