印度尼西亚采购需求：内六角螺钉、六角螺母、Gr4六角螺母、Gr6六角螺母、Gr8六角螺母、双头螺栓

I'm reaching out to get a comprehensive overview of your product offerings. It would be great if you could send me a catalog or a list of all the items currently available. I'm especially interested in understanding the variations and features of your products. Additionally, if there are any new arrivals or special items that you think I should know about, please include those as well. Having this info will help me better assess how your products align with our needs. Looking forward to your detailed response!