uk.investing.com on MSN4 个月
Contractor accuses PVC pipe makers of price-fixing
It is alleged that the companies started to fix prices by sharing competitively ... and others who allegedly overpaid for PVC ...
US Justice Department investigating possible price-fixing in PVC market: reports
Civil lawsuits have alleged that PVC makers, including Otter Tail, used News Corp-owned (NWS, NWSA) trade publication PVC & ...
Hackaday8 年
$12 Quadcopter Frame From PVC Pipe
[Thomas Jarrett] has an interesting approach: he uses schedule 21 PVC pipe to build a sturdy airframe that is inexpensive and can house the craft’s electronics to boot. You can see a video of ...