• Haihao Group welcomes you to visit us at ADIPEC in Abu Dhabi2024-10-28
• How to relieve welding stress？2024-10-25
• What are the hazards of welding stress?2024-10-24
• How many types of welding stress are there?2024-10-23
• Manufacturing technology of large diameter straight seam submerged arc welded steel pipes2024-10-18
• What is SSAW steel pipes?2024-10-17
• Differences between ERW and LSAW steel pipes2024-10-16
• What is large diameter straight seam steel pipes?2024-10-15
• What is vacuum heat treatment?2024-10-11
• Common alloying elements in weld metal and their functions2024-10-10
• The effects of Cadmium (Cd) and Tellurium (Te) on steel2024-10-08
• The effects of Arsenic (As) and Bismuth (Bi) on the microstructure and heat treatment of steel2024-10-08
• The influence of Rare Earth Elements (RE) and Tin (Sn) on steel properties2024-10-08
• The role of Magnesium (Mg) in steel2024-10-08
• The role of Cobalt (Co) in steel2024-10-08
• The role of Lead (Pb) and Bismuth (Bi) in steel microstructure and heat treatment2024-10-08
• The role of Rare Earth Elements (RE) in steel microstructure and heat treatment2024-10-08
• The role of Beryllium (Be) in steel microstructure and heat treatment2024-10-08
• The influence of Tungsten (W) on steel properties2024-10-08
• Haihao Group’s successful participation in Tube China 20242024-10-01