"fitings " CNS Standards List |
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CNS 5853
2022 Edition Method of oven test for moulded fitings in unplasticized polyvinyl chldride (PVC) with elastic sealing ring type joints for use under pressure 壓力下使用之硬質聚氯乙烯帶有彈性活套接頭之管件耐熱試驗法 |
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