美国采购需求：气缸活塞杆、铝制气缸管、铝棒、铝圆管、气缸套件、硬铬棒

I am looking to source a specific component with a diameter of 100mm and a length of 150mm. The required quantity is 2 units. It's crucial for my project that these items meet high quality standards, so please provide details on the materials used, as well as any certifications or quality assurance processes you have in place. Additionally, could you let me know the lead time for production and delivery? I would also appreciate it if you could include pricing information and any bulk purchase discounts that may be available. If there are different options for this component, feel free to share those as well. Looking forward to your prompt response!