巴基斯坦采购需求：水泵机械密封，泵轴密封，Imo泵备件，单弹簧机械密封，双机械密封，机械轴密封

I'm looking to source some high-quality seals for water pumps. Please provide details on your available options, including specifications, materials used, and any relevant certifications. Additionally, I would like to know about your pricing, minimum order quantities, and lead times for delivery. If you have any sample products or previous project references, that would be helpful too. Please share any additional info that might assist in making an informed decision.