Tube bundle joints shall be made only with manufacturer approved joining kits. 導壓管管束介面指南使用製造廠認可的聯接工具。
Each tube in each bundle shall be clearly identified with a stainless steel tag at each end to show service and route. 對於每個管束的每根導壓管，應在每個埠清楚地用不鏽鋼標籤標明用途和路線。
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電信業務許可證編號：滬B2-20190700
