美国采购需求：促销品、促销礼品、广告礼品、挂绳、赠品、硅胶腕带

I'm looking for detailed information regarding your production line capabilities. Specifically, I'd like to understand the types of products you can manufacture, any customization options available, and the lead times associated with different volume orders. Additionally, could you provide insights into your quality control processes and any certifications you hold? Understanding your production capacity and flexibility would also be helpful as we consider potential collaboration. Looking forward to your prompt response!