OCMA GRADE Performance Standard-OCMA Huawei Standard OCMA Viscometer dial reading at 600r/min MIN.30 MIN.35 Yield point/plastic viscosirty ratio MAX. 6 MAX.4 Filtrade volume/ml MAX.16 MAX.12 Residue of diameter 75 um% MAX.2.5 MAX.2 Moisture content% MAX11 A.Why choose HW Group? 1) We are the ONLY STATE-LEVEL KEY HIGH-TECH ENTERPRISE of manufacturing bentonite in China. 2) We are the largest bentonite manufacturer in China, and specialized in researching and developing bentonite for over 20 years 3) Own almost 1.5 million square meters bentonite mine with high Montmorillonite content. Also, it's the largest bentonite mine in China. 4) Own tens of state patented technologies and "HUAWEI" brand. 5) We are able to offer you the steady quality all the time with exclusively self-retained technologies, that's different from others. For details please Contact us: Huawei Bentonite Group Tel:+86-5365078756 Mb:+86-18953660268 Skype: cuteweli Web: http://www.chinabentonite.cn Welcome to Huawei Bentonite Group!