首页>
外国专利>
Improvements in the coupling between the Chain Link and the corresponding RollerFormed by the Assembly of Striation roll around the hole of the transmission link of Industrial Chains, and especially of the chains of bicycle and motorcycle
Improvements in the coupling between the Chain Link and the corresponding RollerFormed by the Assembly of Striation roll around the hole of the transmission link of Industrial Chains, and especially of the chains of bicycle and motorcycle
