
BS ISO 13259. Thermoplastics piping systems for underground non-pressure applications. Test method for leaktightness of elastomeric sealing ring type joints
出版:British Standards Institution

專家解讀視頻
BS ISO 13259. Thermoplastics piping systems for underground non-pressure applications. Test method for leaktightness of elastomeric sealing ring type joints
出版:British Standards Institution
專家解讀視頻