Standard Classification and Classification 4-1 Classified Classification: 1 National Standard GB 2 Industrial Standard YB 3 Local Standard 4 Corporate Standard Q/CB 4-2 Classification: 1 Product Standard 2 Packaging Standard 3 Method Standard 4 Basic Standard 4-3 Standard level (3 levels): Y level: International advanced level I level: International general level H level: Domestic advanced level 4-4 GB GB1220-84 Stainless steel rod (level I) GB4241-84 Stainless Welding Disk Park (Grade H) GB4356-84 Stainless Welding Disk Park (Class I) GB1270-80 Stainless Steel Pipe (Class I) GB12771-91 stainless steel welded pipe (Y grade) GB3280-84 stainless cold plate (I level) GB4237-84 Stainless Hot Plate (Class I) GB4239-91 stainless cold band (I level) Disinfectant Liquid,Disinfectant Solution,Household Disinfectants,Hospital Grade Disinfectant Ningbo Autrends Prevention Products Co., Ltd , https://www.autrendsafety.com
The stainless steel tube information