<p>discharged gas pipeline after tightening the pressure test pump switch. (2) water pressure test. (2) closed the total inlet valve, the pipeline slowly boost, boost to the designated test pressure, observe the joints, plug whether the water leakage. (3) PPR,</p>
<p>aluminum-plastic PPR, PPR and other steel-plastic pipe to keep more than 30 minutes, aluminum pipe, galvanized pipe and other non-welded pipe to keep 4 hours. End of the test time, the pressure drop of not more than 0.05MPa for qualified. 2, water</p>
<p>pressure relief pressure test to confirm the qualified, the pipe end connected with the water to work pressure water supply, batch open water distribution parts, the detection of the outlet is smooth. 3, the electrical acceptance process 1, check the house</p>
<p>wpc flooring suppliers in uk<br />
composite floor boards for boat<br />
cheap composite decking sale cos</p>