津巴布韦采购需求：葵花籽、瓜子、蔬菜种子、西瓜籽、黄瓜种子、南瓜种子

I'm reaching out to inquire about the pricing for large sized black rind red flesh watermelon seeds on a per kilogram basis. We're interested in understanding not just the unit price, but also any bulk pricing options that might be available for larger orders. Please provide any information regarding minimum order quantities and lead times as well. Additionally, it would be great to know the quality of the seeds you offer, including germination rates and any certifications you may have. If there are any other relevant details or specifications about the seeds that could help us in our decision, please include that information as well. Looking forward to your prompt response!