印度尼西亚采购需求：镀锌钢管、热轧钢管、方钢管、矩形钢管、热轧方钢管、石油天然气管道

I would like to request a quote for 60 off pipes. Each pipe should be 6 meters in length, with a diameter of 800mm and a wall thickness of 6mm. The material required is Grade 55 structural steel, specifically designed in a spiral wound configuration. Please provide details on pricing, lead times, and any available options or variations. Any additional information regarding specifications or relevant certifications would also be appreciated. Looking forward to your prompt response!