ISTECH provides technical inspections, upgrading and repair – treatments of stainless steel cargo tanks, piping systems, installations and scrubbers (new and in service) worldwide by means of mechanical polishing, (pitting) corrosion removal, pickling and passivation for material types such as SUS 304, 316 (L) (LN) , 254SMO , duplex 2205 and all other SS material types. ISTECH Metal Finish BV is a professional company, with extensive knowledge and understanding of stainless steel passivation, since 35 years our customers (mainly ship owners) are fully satisfied with the results.