... boltsmaterial:stainless steelsize:m10x80Specialized in manufacturing fasteners such as bolts,screws,studs,nuts,washers,threaded Rods,pins,rivets,stamping ... include the following 7 types:1. High strength alloy steel double end stud- , fully-threaded stud and heavy hex ... of "creating first class enterprise and manufacturing high quality bolts" and brand concept of "science and technology serves people ...