GB - Chinese national standards

Test method for carrier concentration of silicon epitaxial layers—Capacitance-voltage method

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Available design: electronic design (pdf), Print design

Glass blank of ophthalmic lenses

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Available design: electronic design (pdf), Print design

Laboratory glassware--Interchangeablespherial ground joints

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Available design: electronic design (pdf), Print design

Metric threads where pressure-tight joints are made on the threads

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Available design: electronic design (pdf), Print design

Guangdong decoration porcelain

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General quality requirements for canned edible fungi

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Thermoplastics pipes--Determination of resistance to external blows--Round-the-clock method

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

General test method for impact resistance of rigid plastics by means of falling weight

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Available design: electronic design (pdf), Print design

Plastics doors--Vertical load test

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Available design: electronic design (pdf), Print design

Doorsets - Soft heavy body impact test

Available languages: English, Chinese

Available design: electronic design (pdf), Print design