grade 8.8 bolt specification: 1Materials:Carbon steel 2Size:M24*80,27*130,30*270 ... ,Dacro 4Certificate:ISO9 Different types of grade 8.8 bolt specification Details of the product:1Materials: 1045, 45#, 40Cr, 35CrMoA, ... such as U.S.A., Canada, Cuba, Germany, Japan, Singapore, Malaysia and Africa and so on.Pictures:1.certificate:2. Various ... your visit! Different types of grade 8.8 bolt specification