"Vitrified clay " CNS Standards List| Method Test | Method test | Method Test | Broadband integrated | Method Test | Asphalt use | Polyolefine Stretched | Carbon steel | |
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CNS 12938
2020 Edition Vitrified clay pipes and fittings and pipe joints for drains and sewers 排水及污水用瓷化黏土管以及其配件與管接頭 |
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