安哥拉采购需求：杂交葵花籽、种植葵花籽、紫色葵花籽、葵花籽、种植用葵花籽、葵花籽

I'm looking to purchase sunflower seeds for a sizable planting area of about 30 hectares. I'm particularly interested in bulk options that ensure good quality and high germination rates. Could you provide me with information on your available varieties, including any certifications or testing results that affirm their reliability? Additionally, please include details about pricing, minimum order quantities, and expected delivery timelines. If you have any recommendations based on previous customer experiences or best-sellers, I'd love to hear about those too. Looking forward to your prompt response!