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GB/T 9450-2005 Steels—Determination and verification of the depth of carburized and hardened cases via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
JB/T 11232-2011 The technical requirements of accuracy-controlled gaseous nitriding via email in please email coc@codeofchina.com for quotation
JB/T 10175-2008 Quality control requirement for heat treatment (USD) via email in 1-3 business day
ZB/T J 36017-1990 via email in ABOLISHED please email coc@codeofchina.com for quotation
ZB J 36011-1989 via email in ABOLISHED please email coc@codeofchina.com for quotation
GB/T 37586-2019 Technical regulation for simulation on heat treatment process of heavy steel forgings (USD) via email in 1-3 business day VALID
GB/T 8121-2002 The terminology of technological materials for heat treatment via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 38770-2020 Spheroidite examination and grading for low and medium carbon steels (USD) via email in 1-3 business day TO BE VALID
GB/T 38805-2020 Technical requirements of heat treatment for heavy duty gears (USD) via email in 1-3 business day TO BE VALID
JB/T 4392-2011 Test method of polymer quenchants via email in VALID please email coc@codeofchina.com for quotation
JB/T 9198-2008 Salt bath sulpho nitrocarburizing (USD) via email in 1-3 business day VALID
JB/T 7519-1994 via email in 1-3 business day please email coc@codeofchina.com for quotation
GB/T 9450-1988 Determination and verification of the effective depth of carburizod and hardened cases of steel parts via email in ABOLISHED please email coc@codeofchina.com for quotation
GB/T 16923-2008 Normalizing and annealing of steel parts (USD) via email in 1-3 business day VALID
JB/T 4393-2011 Polyvinyl alcohol of quenching media via email in VALID please email coc@codeofchina.com for quotation
JB/T 8491.5-2008 Technical requirement heat treatment for machine tool parts—part 5:Nitriding and nitrocarburzong (USD) via email in 1-3 business day VALID
JB/T 9210-1999 Vacuum heat treatment via email in 1-3 business day please email coc@codeofchina.com for quotation
JB/T 10448-2005 Solid aluminizing process and quality inspection of iron and steel parts (USD) via email in 1-3 business day VALID
GB/T 36561-2018 Technique requirement and evaluation system of cleaning and energy saving heat treatment equipment (USD) via email in 1-3 business day VALID
JB 3814-1985 (USD) via email in 1-3 business day ABOLISHED
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