This standard specifies the vocabulary (including terms and definitions) and the English names of terms and their indexes used in

This standard is based on ISO 2400:1972 "Comparison standard test blocks for calibration of instruments for ultrasonic testing of

This standard refers to the contents of BS 5493-1977 "Code of Practice for Anti-Corrosion Coatings on Steel Structures" and BB 447

This standard specifies the corrosion test methods for metal coatings and organic coatings in natural seawater under full immersio

This standard specifies the welding process performance evaluation method for φ3.2～φ5.0mm welding rods. Other specifications of we

This standard is written with reference to the structure of the "MRPⅡ Standard System". The formulation of this standard provides

This standard specifies the general rules for the inspection of steel free forgings. JB/T 8421-1996 General rules for the inspecti

JB/T 8405—2001 This standard is a revision of JB/T 8405—1996 "Type Inspection Rules for Four-wheeled Agricultural Transport Vehicl