印度尼西亚采购需求：蝶阀（对夹式齿轮驱动）、蝶阀（对夹式蜗轮蜗杆驱动）、凸耳对夹式蝶阀、凸耳对夹式蝶阀、单法兰蝶阀、蝶阀

I'm interested in placing an order for butterfly valves for our upcoming project. Could you please provide detailed information on your available options? Specifically, I'd like to know about the sizes, materials, and any relevant certifications you might offer. Additionally, it would be great to get insights on pricing, minimum order quantities, and lead times for delivery. Please include your terms of payment and any warranty information as well. I'm looking forward to your prompt response so we can move forward quickly. Thanks!