... chain pin (04C-24A) 2.material:20CrMnMo ,40CrNiMo ,20CrNiMo ,GCr15,35CrMo,50CrVA,30CrMnTi,38CrMoAl,40Cr 3.1.80mm-15. ... 0mm(di 1.chain pin(04C-24A) 2.material:20CrMnMo , ... 40CrNiMo ,20CrNiMo ,GCr15,35CrMo,50CrVA,30CrMnTi,38CrMoAl,40Cr 3.1.80mm- ... } ); } )(); 20CrMnMo chain pin,chain rivet for chain(04C-24A)