印度采购需求：彩色镀锌管、耐用镀锌管、镀锌管、镀锌方钢管、镀锌方管、热浸镀锌管

We are seeking Galvalume steel roofing corrugated sheets for a factory shed in India. We need two options: a full replacement with insulation including sheets, insulation material, top metal layer, screws, and labor; or just the replacement of the top metal sheet in a specified color with necessary accessories. Please confirm if you have BIS Certification for exporting to India and the nearest port to your factory. It would be great if you could provide pricing on both FOB and CIF bases, along with HS codes, delivery timelines, and payment terms. Looking forward to your prompt response!