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GB/T 38094-2019 Vitreous and porcelain enamels—Low voltage test for detecting and locating defects (USD) via email in 1-3 business day VALID
GB/T 7988-2002 Vitreous and porcelain enamels--Determination of resistance to hot sodium hydroxide via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
HG/T 2058.1-2009 Glass-lined thermometer tube (USD) via email in 1-3 business day ABOLISHED
HG/T 2637-2011 Detecting methods of geometry dimension for glass-lined parts via email in ABOLISHED please email coc@codeofchina.com for quotation
GB/T 7991.4-2019 Test method of viterous and porcelain enamels—Part 4:Determination of resistance to impact (USD) via email in 1-3 business day TO BE VALID
GB/T 7989-2003 Vitreous and porcelain enamels—Determination of resistance to condensing hydrochloric acid vapour via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 30199-2013 Vitreous and porcelain enamels—Determination of scracth resistance of enamel finishes (USD) via email in 1-3 business day VALID
GB/T 25026-2010 One piece glass-lined steel vessels with agitator (USD) via email in 1-3 business day ABOLISHED
GB/T 7991-1987 Method for measuring the thickness of glass-lined layer by electro-magnetic meter (USD) via email in 1-3 business day ABOLISHED
GB/T 7990-2002 Impact test method of glass-lined layer via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 31565-2015 Vitreous ang porcelain enamels―Determination of the edge covering on enamelled steel plate to be used in heat exchangers (USD) via email in 1 business day VALID
HG 2432-2001 Quality standard of glass -- Lined equipment for industrial (USD) via email in 1-3 business day
HG/T 3126-2009 Glass-lined steel vessel for distillation (USD) via email in 1-3 business day ABOLISHED
GB/T 7989-2013 Viterous and porcelain enamels—Determination of resistance to chemical corrosion by boiling acids and their vapours (USD) via email in 1-3 business day VALID
GB/T 7988-2013 Viterous and porcelain enamels—Determination of resistance to alkaline liquids (USD) via email in 1-3 business day VALID
HG/T 2375-2004 Horizontal glass lined steel vessel for storage (USD) via email in 1-3 business day ABOLISHED
HG/T 2638-2011 Quality classification of glass-lined equipment for industry via email in ABOLISHED please email coc@codeofchina.com for quotation
GB/T 25144-2010 Determination of coefficient of mean linear thermal expansion for vitreous and porcelain enamels (USD) via email in 1-3 business day VALID
HG/T 3126-1998 vessel of glass -- lined steel for distillation (USD) via email in 1-3 business day ABOLISHED
GB/T 7990-2013 Vitreous and porcelain enamels—Determination of resistance to impact (USD) via email in 1-3 business day VALID
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