坦桑尼亚采购需求：批发钢管，36英寸钢管，钢管经销商，钢管供应商，钢管销售商，钢管批发商

I'm interested in sourcing seamless pipes for our upcoming projects and would like to get more info from your side. Specifically, I need details about the various types of seamless pipes you offer, including any specifications, size ranges, materials, and any applicable standards or certifications. If you have a catalog or a technical data sheet, that would be super helpful. Additionally, I'd like to inquire about your pricing structure, minimum order quantities, lead times, and shipping options. Understanding these aspects will help me evaluate the potential for collaboration. Looking forward to your prompt response with the necessary details. Thanks!