Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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JB/T 8419-2008 Classification and code of technological materials for heat treatment 120.0 via email in 1~3 business day valid
JB/T 11232-2011 The technical requirements of accuracy-controlled gaseous nitriding 120.0 via email in 1~3 business day valid
JB/T 8420-2008 Microstructure grading of hat die steel 300.0 via email in 1~3 business day valid
GB/T 9450-2005 Steels—Determination and verification of the depth of carburized and hardened cases 80.0 via email in 1~3 business day valid
QJ 1181.6A-1995 Heat Treatment for Magnetically Soft Alloy - Heat Treatment for Constant Permeability Alloy 45.0 via email in 1~3 business day valid
JB/T 5069-2007 Metallographic examination method of diffusion metallized layer of steel parts 210.0 via email in 1~3 business day valid
JB/T 9200-2008 Flame hardening and tempering of iron and steel parts 150.0 via email in 1~3 business day valid
JB/T 4390-2008 High and medium tempereture salt bath rectifier 120.0 via email in 1~3 business day valid
JGJ 141-2004 Technical specification of air duct 1275.0 via email in 1~10 business day abolished
QJ 2666-1994 Heat Treatment of Silicon Steel for Electrical Purposes 150.0 via email in 1~3 business day valid
HB/Z 239-1993 Instructions on Heat Treatment Process of Expansion Alloy 120.0 via email in 1~3 business day valid
JB/T 10175-2008 Quality control requirement for heat treatment 120.0 via email in 1~3 business day valid
GB/T 9451-2005 Determination of total or effective thickness of thin surface hardened layers of steel parts 60.0 via email in 1 business day valid
JB/T 9204-2008 Metallographic examination of induction hardened steel parts 120.0 via email in 1~3 business day valid
JB/T 10896-2008 Technical requirement of heat treatment for pusher type controlled atmosphere carburizing line 180.0 via email in 1~3 business day valid
GB/T 32529-2016 Technical requirement of cleaning liquid waste recycling and emissions for heat treatment 150.0 via email in 1~3 business day valid
JB/T 7713-2007 Metallographic examination method of high-carbon high-alloy cold-work tool steel 120.0 via email in 1~3 business day valid
JB/T 9210-1999 Vacuum heat treatment 75.0 via email in 1~3 business day abolished
TB/T 1779-1993 Technical Specification for Quenching of Turnout Steel Rails 20.0 via email in 1 business day valid
JB/T 8491.5-2008 Technical requirement heat treatment for machine tool parts—part 5:Nitriding and nitrocarburzong 90.0 via email in 1~3 business day valid
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