可靠的连接性能：PE管热熔或电熔接口的强度高于管材本体，接缝不会由于土壤移动或活载荷的作用断开。
Reliable connectivity: PE pipe hot melt or fused interface strength is higher than the pipe body, joints will not load due to soil movement or the role of living off.
熔接参数（考数值为电承插热熔，热熔时间和冷却时间。
Welding parameter. ( Reference values for electric socket welding-welding time and cooling time.
熔接参数（考数值为电承插热熔，热熔时间和冷却时间。
Welding parameter. ( Reference values for electric socket welding-welding time and cooling time.
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