GB - Chinese national standards

Performance test for water treatment equipment

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Classification and codes for fundamental geographic information feature

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Inspection code for accuracy of involute cylindrical gears

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Metallographic test method for high manganese cast steel

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Industrial valves—Pressure testing

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Reciprocating minitype air compressors

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Water ring vacuum pumps and compressors—Testing method

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Water ring vacuum pumps and comprssors—Method for measurement of volume flow of gas

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Electrostatic precipitator—Methods of performance tests

Available languages: English, Chinese

Available design: electronic design (pdf), Print design

Cast iron swing check valves

Available languages: English, Chinese

Available design: electronic design (pdf), Print design