MEXICO CITY — The Mexican government has opened an anti-dumping investigation into imports of seamless steel pipe from China.

The investigation was initiated in September at the request of local tube maker Tenaris Tamsa, according to a notice published in Mexico’s official gazette.

The pipes subject to investigation have a diameter of between 60.3 and 114.3 millimeters, according to the notice.

Tenaris Tamsa said the imports had entered the Mexican market at an unfair price and have been affecting the domestic pipe industry.

Between April 1, 2011, and March 31, 2012, imports of seamless pipes from China rose by 51 percent, the tube maker said. The period proposed for investigation runs from January 2009 through March 2012.

The Unit of Foreign Trade Practices will start the investigation and hold a public hearing on Aug. 8, 2013, the Mexican Secretariat of Economy said.

A version of this article was first published by AMM sister publication Steel First.