GB - Chinese national standards

General principles of water balance test

Available languages: English, Chinese

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Information technology - Open system interconnection - Transport service definition

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Method of evaluating luminous environment

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

The rationality of electricity usage in guesthouse and hotel

Available languages: English, Chinese

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Method of total acid in foods

Available languages: English, Chinese

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Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Coupling—Classification

Available languages: English, Chinese

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Steel buttwelding pipe fittings—Types and parameter

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Steel buttwelding piping fittings—Types and parameters

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Application formats for oceanographic data records

Available languages: English, Chinese

Available design: electronic design (pdf), Print design