I. Fitur: 1. pipe upvc, uga dikenal minangka hard pipe polyvinyl chloride, u-pvc pipe, punika jenis resistance karat kuwat, asam, lenga uyah alkali resistance erosi medium, bobot entheng, kekuatan mechanical tartamtu, kahanan hydraulic apik , instalasi trep, nanging gampang kanggo tuwa, dhuwur te...
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