坦桑尼亚采购需求：中国 HPMC 和甲基纤维素，特色产品

I'm reaching out to inquire about your HPMC products. We're looking for a reliable supplier to provide quality HPMC for our various applications. It would be great to know more about your production capabilities, specifications, and any certifications you hold. Additionally, it would be helpful to receive information regarding your pricing, minimum order quantities, and lead times for delivery. We're aiming to establish a long-term partnership, so details about your customer support and after-sales service would also be appreciated. Looking forward to your prompt response!