39174000 under HS Code TUBES, PIPES AND HOSES, AND FITTINGS THEREFOR (FOR EXAMPLE, JOINTS, ELBOWS, FLANGES), OF PLASTICS - FITTINGS, 85366199 under HS Code Others, and 85442039 under HS Code Others. were the top exported HS Codes by GATCOM VIETNAM ENGINEERING CO LTD in 2021.