Feature 1.Material :42CrMo or 40Cr2.Standard:Din74443.Surface finish : zinc plated , chrome plated , powder coated or black4,Product procedure : drop forged and Q.T.5.Size:from 22mm to 150 mm6.Quality guarantee:ISO9001:2000 and UKAS7.OEM part, special specification and marks can be manufactured according to clients'instructions. producing area:China payment:T/T, L/C, D/A, D/P