钢塑过渡管件由PE管端和金属管端组成。
PE/ Steel transition fittings consist of PE pipe-end and metal pipe-end.
耦合金属封装件是一整体管结构，或由激光器固定管体、耦合过渡管、以及外封管组成。
The coupling metal packaging piece is of an integral tube structure, or formed by a laser fixing tube body, a coupling transition tube and an outer packaging tube.
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