Siphon drainage is a drainage method for building roof drainage. It plays an important role in the drainage of rainwater in large buildings and artist...
The materials of the drainage pipes on the same layer are described below with respect to the materials: I. Material The plastic of the drainage pipe ...
Material preparation Round nails, electrodes, solder, dilute hydrochloric acid, cement, etc. Main equ...
HDPE drainage pipe installation requirements: 1. Before construction, do secondary visual inspections on pipes, fittings, etc., and any problems found...
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