It is reported that Pervouralsky Novotrubny Works a subsidiary of one of the largest Russian pipe producers, ChTPZ Group h has obtained American Petroleum Institute certification for its products.

Following the successful certification audit, PNTZ has received the right to manufacture tubing, casing and oil pipes of API 5CT and API 5L standards, with the right to apply the official API monogram on its goods.

PNTZ was able to expand its product range and to obtain new certification due to the commissioning in May 2009 of its new finishing center for the production and processing of oilfield pipes.