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The products are standard fasteners like hex head bolts(major DIN933/931 ,hex socket screws(DIN912 competitive price with class 8.8, for 12.9),DIN6921 8.8,10.9,DIn7991 8.8,DIn603 class 4.8( M5x16---M20x300), Speedway guardrail bolts, hex nuts DIN934 M6--M64, threaded rods,flat washersDIN125A, DIN9021, and spring washers,the standards that we use are Germany standard DIN, America standard ANSI,ASTM, International standard ISO |
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