德国采购需求：铸铁棒、液压歧管、压缩机螺杆转子、RV减速器销轮壳体、发动机缸体、喷油缸前端

I'm looking to source cylinder heads for Chinese cars and would appreciate it if you could provide me with your product catalog and pricing details. I'm particularly interested in any specifications, material options, and available quantities. If you have images or samples, that would be great to see as well. Please reach out to me via WhatsApp or WeChat for quicker communication. Let's discuss the details further to explore potential collaboration. Thanks in advance for your prompt response!