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ISO standards
Commercial quality standards for a variety of industries developed by the International Organization for Standardization (ISO).
Industry: Quality management
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ISO standards
ISO 4433-3:1997
Quality management; ISO standards
熱塑性塑膠管材 — — 耐液體化學品。分類。硬的 poly(vinyl chloride) (PVC-U)、 高影響 poly(vinyl chloride) (PVC-HI) 和氯化的 poly(vinyl chloride) (PVC-C) 管道。
