印度采购需求：谷物色选机、咖啡色选机、光学分选机、色选机、Sortex 色选机、大米色选机

I'm looking for silica options, specifically a milky white variety as well as a product that comes in a transparent white form. Could you provide details on the available types, including their specifications and any differences in properties or applications? Additionally, I'd like to know about the pricing, minimum order quantities, and lead times for these products. If you have any samples available, that would be great too. I'm aiming to make a decision soon, so any info you can provide would be appreciated!