美国采购需求：个性化刻字戒指制造商，925银戒指

I'm currently in China and looking to produce 8 custom rings, each with unique designs (1-2 pcs for samples). I'm considering 925 silver or stainless steel for the material—would appreciate your input on which is better. I need these rings to have a heavy, solid feel (not hollow) and would like to include laser engraving either on the inner or outer surface. The finish can either be matte or polished, but the key is high-quality craftsmanship. Fast turnaround for samples (around 7-10 days) is also important as I'd like to see the products in person soon. Could you please provide me with the MOQ for the engraved rings? Also, let me know the sample production time and costs involved, as well as your factory address for a possible visit. If you offer free or low-cost samples, I'd like to confirm that as well. I can send reference images for better clarity on the designs right away. Looking forward to your prompt response!