• Nto roughness Ra <0.5 μm
• Tus qauv kam rau ua: ASTM A269, los yog D4/T4
• Lub zog - Tensile, tawg
• Hardness – Rockwell, Micro
• Soundness – Eddy Tam sim no, Ultrasonic
• Leak & Strength – Hydrostatic
• Leak – Cua hauv qab dej
• Khoov Test – Rov qab khoov, Flattening, Rov qab Flattening, Flange
• Dimensional – OD, Phab ntsa, Ncaj
• Metallurgical – Grain Size, Sensitization, Corrosion, Phase Balance/Intermetallic, Metallographic