南非采购需求：硫化染料、萘酚染料、冰染染料、酸性染料、直接染料、碱性染料

I'm reaching out to get more detailed information on your black iron oxide products. Could you please provide me with the specifications, including particle size, purity levels, and any relevant data sheets? Additionally, I'd appreciate it if you could share your pricing options, including bulk purchase discounts and lead times for delivery. This info will help us make a more informed decision. Looking forward to your prompt response!