美国采购需求：太阳能光伏连接器，QC4.10-cds/efs，光伏连接器，太阳能电池板连接器，光伏电缆连接器，太阳能电连接器

I'm looking for details on the QC4.10 specifications related to the base polymer, particularly as it pertains to applications or insights from Sandia National Laboratories. It would be great to understand the specific properties, any recommended applications, and quality standards associated with these specifications to make an informed decision. Additionally, please provide information on current availability, lead times, and any potential pricing tiers based on volume. If there are related products that meet or exceed these specs, I'm interested in those options as well. Looking forward to your prompt response!