
Bs En 712 Plastics Piping Systems - Mechanical Joints Between Pressure Pipes And Fittings - Test Method For Resistance To Pull-out Under Constant Stress
出版:British Standards Institution

專家解讀視頻
Bs En 712 Plastics Piping Systems - Mechanical Joints Between Pressure Pipes And Fittings - Test Method For Resistance To Pull-out Under Constant Stress
出版:British Standards Institution
專家解讀視頻