潘金莲被吸乳揉到高潮的视频,久久99久久99精品免观看,在电影院里拨开内裤挺进,护士交换粗吟配乱大交动态图

Major component:Sodium dicresyl dithiophosphate

Description:A dark-brown to black aqueous solution.PH 10-13,no pungent odour.

Principal uses:Dithiophate 25S is a water solution made from dithiophosphate 25.it is an effective collector for copper,lead sulfide minerals.Because of its weak collective power to zinc sulfide it is usually used in the selective separation flotation of copper and lead sulfides from zinc sulfide minerals.This reagent may be fed to flotation circuit.

Specification:Sodium dicresyl dithiophosphate content 49-53%

Packing: 200KG Plastic bucket or 1000KG T bucket

Storage & transport:To be protected from water,torrid sunlight and fire.