印度尼西亚采购需求：碳钢管、脚手架、不锈钢管、管件、其他钢制品、消防喷淋管道

I'm reaching out to request a detailed quotation for steel pipes. We're interested in understanding your pricing, available sizes, and specifications for bulk orders. It would be great if you could provide information on the materials used, any industry certifications you hold, and lead times for delivery. Additionally, if you have options for different grades or finishes, please include that in your response. We're looking to establish a reliable supply chain, so any insights on your production capabilities and minimum order quantities would also be appreciated. Thanks in advance for your prompt response!