... of Origin: henan,China (Mainland) Type: Adsorbent Adsorbent Variety: Activated Carbon Usage: Coating Auxiliary Agents, Electronics Ch... Brand Name: premtec Model ... N220 N330 N550 N6602N220 We supply diverse model carbon black, for example N220, N330, N550, N660, N339, etc. 1. Type: ... good waterproof property Put away from water and solarization Carbon black N330 N220 N550 N660 1black powd or granular ...