supply of multisurface pervasive compound in 400 ml (net wt.310 mg) spray units as per annexure attached. quick diffusion to remove & inhibit ferrous oxidation forms a protective barrier against atmospheric attacks & suitable for all types of surfaces, non toxic & non conductive.make m7 of black lotus,s-1620 of s-tech ,i -pen of i-chem or md-a of svp or similar.multisurface pervasive compound in 400 ml (net wt.310 mg) spray units as per annexure attached. quick diffusion to remove & inhibit ferrous oxidation forms a protective barrier against atmospheric attacks & suitable for all types of surfaces, non toxic & non conductive.make m7 of black lotus,s-1620 of s-tech ,i -pen of i-chem or md-a of svp or similar.,multisurface pervasive compound in 400 ml (net wt.310 mg) spray units as per annexure att ached. quick diffusion to remove & inhibit ferrous oxidation forms a protective barrier against atmospheric attacks & suitable for all types of surfaces, non toxic & non conductive.make m7 of black lotus,s-1620 of s- tech ,i -pen of i-chem or md-a of svp or similar. [ warranty period: 30 months after the date of delivery ] ] => limited