[Raw Material] 45# quality carbon steel,40CrV alloy steel [Heat Treatment] Auto Temperature Control,45#:HRC39-44;40CrV:HRC42-48 [Certificate] [Size] 6",8",10" Information Slip Joint Pliers Finish:fully polished,chrome plated.Ni-Ni-Cr Type:Normal,PVC dipped handle Packing:bulk,hanging card,blister card,color box Origin Shandong