"Polyethylene large" CNS Standards List| Hand Cut, | Error performance | Method abrasion | Pipe Flange | Method Test | Formats codes | Copper Copper | Method Test | |
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CNS 15917
2021 Edition Polyethylene large diameter profile wall sewer and drain pipe 聚乙烯塑膠管-耐慢速裂痕擴展-錐體試驗法 |
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