柬埔寨采购需求：水脱色剂，聚DADMAC，DADMAC，PAM-聚丙烯酰胺，聚胺，PAC-聚合氯化铝

I'm reaching out to inquire about products available in black. We are specifically interested in various items that come in this color option, as it aligns with our current project needs. It would be great to see a list of your offerings, along with details on pricing, available sizes, and any customization options you might have in black. Additionally, if you could provide information regarding lead times for production and shipping, that would be super helpful. We're aiming to finalize our selections soon, so any catalogs or brochures you could send would be appreciated. Looking forward to your prompt response on this matter. Thanks!