high density polyethylene water pipe

Kukana kutentha mapaipi a HDPE, zopangidwa ndi polyethylene yapamwamba kwambiri, ali ndi mphamvu zochepa zolimbana ndi kutentha koma angagwiritsidwebe ntchito nthawi zonse mkati mwa kutentha kwina. M'mikhalidwe yabwino, kuchuluka kwa kutentha kwa HDPE…