Ito nakita ko materiarl safety datat sheet ng zic a and zic up.
Paano nyo nacompute yung exact ppm?
Zic up and zic a 10w40 pareha zdp.
Zinc dialkyldithio phosphate - 0.5~1.5
zic a
http://www.skzic.com/kor/service/Pds....asp?intno=760
zic up
http://www.skzic.com/kor/service/Pds....asp?intno=725


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