hat
Pou tib asye sibi presyon likid pou pote soti nan tès idwolik yo teste rezistans presyon yo ak bon jan kalite, nan presyon preskri a pa rive koule, tranpe oswa ekspansyon tankou kalifye, gen kèk tib asye bezwen tou an akò ak kondisyon estanda oswa demann bò pou egzamine tès, tès ekspansyon, tès plati.
eng
For steel tubes subjected to fluid pressure to carry out hydraulic tests to test their pressure resistance and quality, in the prescribed pressure does not occur leakage, soaking or expansion as qualified, some steel tubes also need to be in accordance with standard or demand side requirements for crimping test, expansion test, flattening test.