孟加拉采购需求：二硫代磷酸酯、二乙酸钠、松油、羧甲基纤维素、聚丙烯酸酯、黄原胶

I'm looking to source copper sulfate in bulk for our upcoming projects. We need a reliable supplier who can provide high-quality material at competitive prices. Additionally, please share details about your production capacity, lead times, and any certificates of analysis available. It's essential for us to ensure consistent quality for our applications. Also, I'd appreciate info on your packaging options and shipping terms. Knowing your minimum order quantities and any volume discounts would be helpful too. Looking forward to your prompt response so we can move forward quickly with our procurement process.