钱江摩托：公司绝大部分的摩托车发动机来自自身研发以及与Benelli的共同开发

Group 1 - The company primarily develops its motorcycle engines in-house and collaborates with Benelli for joint development [2] - A small portion of the engines comes from partnerships with world-renowned brands and racing teams [2] - The company does not have any aerospace business [2]