SEMASA, is certified as a tanks fabricator, by some of the major agencies and governmental bodies, which regulate the manufacturing of pressurized vessels, under the following safety rules, codes, and regulations:
Official Mexican Safety Standards: NOM-021/1-SCFI 1993
NOM-021/2-SCFI 1993
NOM-021/5-SCFI 1993
The American Society of Mechanical Engineers (ASME), "U" stamp
United States Department of Transportation
(DOT), MC-331




SEMASA, S.A. DE C.V., is located at the northeastern corner of Mexico, in the suburb Santa Catarina, Nuevo Leon. It is about 125 miles (200 km.) from the U.S. border , and about 370 miles (600 km) from the port of Altamira.

Our manufactured items continually meet or exceed all applicable safety code requirements. The engineering department and manufacturing facilities at SEMASA maintain an innovative, state-of-the-art approach to product application and mass production through ongoing training, research, and upgrading.

Our materials if construction are specifically selected for excellence and internationally-acceptable quality. All of the tanks manufactured by SEMASA are 100% ultrasound and X-ray inspected, as well as stress-relieved per regulation, after welding.
It is for these reasons that after eight years of experience, SEMASA is fully recognized as a national distributor and potential exporter of tanks for LP Gas, anhydrous ammonia, propylene, and other similar hazardous liquids.

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Dionisio Herrera y 4a. Avenida, C. P. 111, Col. Zimex Santa Catarina, N.L. Phone/fax: (52-8) 388-14-72, 388-14-20, 388-25-95