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给水管打压试验规范 ppr管气压试验表填写范例
打8—12KG的气压,气压至少保持半个小时。img alt="ppr管打压规范要求"src="http:static-news.17house.comnewstupianjpgf883cf8e845e11e687e200163e00254c...
打8—12KG的气压,气压至少保持半个小时。img alt="ppr管打压规范要求"src="http:static-news.17house.comnewstupianjpgf883cf8e845e11e687e200163e00254c...