Standards

JB/T 9187-1999 Active

JB/T 9187-1999 Welding turning rolls

Publish Date: 1999-06-24

JB/T 9220.8-1999 Active

JB/T 9220.8-1999 Chemical analysis methods for acid slay of cupola-Determination of magnesium oxide by DDTC separation process and EDTA volumetric method

Publish Date: 1999-06-24

JB/T 9220.7-1999 Active

JB/T 9220.7-1999 Chemical analysis methods for acid slay of cupola-Determination of calcium oxide by volumetric method using potassium permanganate

Publish Date: 1999-06-24

JB/T 9210-1999 Active

JB/T 9210-1999 vacuum heat treatment

Publish Date: 1999-06-24

JB/T 9172-1999 Active

JB/T 9172-1999 Gear nitriding, nitrogen carbon simultaneous nitriding process and quality control

Publish Date: 1999-06-24

JB/T 9176-1999 Active

JB/T 9176-1999

Publish Date: 1999-06-24

JB/T 9220.3-1999 Active

JB/T 9220.3-1999 Chemical analysis methods for acid slay of cupola-Determination of ferrous oxide by volumetric method using potassium dichromate

Publish Date: 1999-06-24

JB/T 9171-1999 Active

JB/T 9171-1999 Gear flame and induction hardening process and its quality control

Publish Date: 1999-06-24

JB/T 9220.9-1999 Active

JB/T 9220.9-1999 Chemical analysis methods for acid slay of cupola-Determination of phosphorus pentoxide by extraction molybdophosphate yellow using methlisobutyl ketone spectrophotometic method of vanadium

Publish Date: 1999-06-24

JB/T 9168.8-1998 Active

JB/T 9168.8-1998 Grinding, common machining process guidelines for cutting processing

Publish Date: 1998-11-16

JB/T 9165.1-1998 Active

JB/T 9165.1-1998 Process document completeness

Publish Date: 1998-11-16

JB/T 9169.1-1998 Active

JB/T 9169.1-1998 Process Management Guidelines General Provisions

Publish Date: 1998-11-16