- The standards and methods for intergranular corrosion test十一 01, 2016
- What is intergranular corrosion in metal material?十 31, 2016
- SGS carried out intergranular corrosion test to stainless steel elbows of Haihao Factory十 28, 2016
- Hebei Haihao technical department communicates with JOINTECH Pakistan十 27, 2016
- Hebei Haihao Group finished the IBR certificated steel pipe fittings十 26, 2016
- The IBR certificate approving process in Haihao Pipe Fitting Group十 24, 2016
- How the steel pipe fittings get approved IBR certificate?十 20, 2016
- Haihao Group showed products in Tube China 2016十 19, 2016
- Tube China Fair 2016 was held in Shanghai 25th September十 18, 2016
- NDT test methods used for piping products十 17, 2016
- NDT application in steel pipe fittings manufacturing十 14, 2016
- What is Tube China Exhibition?十 11, 2016
- What is Non-destructive Testing(NDT)?十 09, 2016
- Brazil may extend anti-dumping duty on seamless steel line pipes from China十 08, 2016
- USA antidumping duty orders on carbon steel butt weld pipe fittings from Brazil,China,Japan,Taiwan and Thailand九 30, 2016
