Interpipe has certified its own premium inserted joints Interpipe UPJ-F for the correspondence to the ISO 13769 CAL IV.
It took the company around a year to develop, test and certify the new product.
This is the second premium-class joint developed by Interpipe. Earlier it has mastered the manufacture of a UPJ-M muff joint.
Trial samples of casing pipes with UPJ-F have been tested at an independent laboratory in Germany. (Ukrainian metal)