Agnaldo Leitão (agnaldoleitao@injtec.com.br), Chief Engineer in the Merchant Marine and graduate in Mechanical Engineering from Gama Filho University (1983). Worked in Docenave - Vale do Rio Doce Navegação S.A from 1968-1983, when he headed the company's Department of Materials Control and Preventive Maintenance. From 1983-1990, he was Technical Director of INTEC - Injeção Técnica Ltda, responsible for coordinating the reconditioning of fuel pumps, fuel valves and nozzles.

Hélio Lorega da Costa (heliocosta@injtec.com.br), Graduate in Mechanical Engineering from Gama Filho University (1983), he held the position of Technical Consultant in INTEC - Injeção Técnica Ltda., when he coordinated electrical, civil and mechanical maintenance services of operational machines and development projects of materials, machining, thermal treatment and materials specification. He was also responsible for the Research and Development Sector of Materials for the substitution of parts and equipment by national equivalents.