露脸叫床粗话东北少妇,五十路熟女人妻一区二区,人妻が夫の前寝取混浴温泉,caoporen免费精品视频

Products

Dithiophosphate 25s

DITHIOPHOSPHATE 25S 

CAS Number: 

Major component: Sodium ditolyldithiophosphate

Molecular Formula: (C7H7O)2PSSNa 

Structural Formula:



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

Principal uses:
Dithiophoshate 25S 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:

Item
Index
Sodium ditolyldithiophosphate content % 49~53
PH 10~13
Period of validity (month) 24
Packing: 170kg/steel drum, 200kg/plastic drum


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

 

The pioneer and cradle of China's mineral processing and pharmaceutical industry
A mineral processing agent production enterprise integrating production, research and development, and marketing
Home

Home

About us

About us

Products

Products

Contact us

Contact us

妈妈的朋友2| 挺进同学熟妇的身体| 乳妓h军妓调教hh文| 国产深夜男女无套内射| 丝袜 中出 制服 人妻 美腿| 亚洲一区二区| 亚洲6080yy久久无码国产| 把腿张开我要cao死你| 边吃奶边被躁欧美三级| 人与禽性视频77777| 交而不泄的方法| 男人多人做人爱的视频| 国产又色又爽又高潮免费| ass美女撒尿pics| 欧美高清videossexo| 无码一区二区三区在线| app在线免费观看视频| 波多野结衣在线视频| 亚洲精品国产精品国自产| 高中女学生破苞视频免费| 国精品无码人妻一区二区三区| 4444亚洲人成无码网在线观看| 中国少妇videos露脸hd| eeuss鲁丝片av无码| 久碰人妻人妻人妻人人掠| 国产精品无码麻豆放荡av| 99热这里有精品| suntek中老年人女妈妈秋装| 国产凸凹视频熟女a片| 女人被躁到高潮嗷嗷叫视频| 欧美vivoy13高清| 精品少妇人妻av无码专区偷人| 少妇和公翁系列小说| 男受被做哭激烈娇喘gv视频| 日产国产亚洲精品系列p| 日本一区二区三区| yw尤物av无码国产在线观看| 欧美成人网站| 国产免费无码一区二区| 大陆农村妇女老bbwbbw| 天堂网在线观看|