Futures contracts held by speculators were up 12 percent in 2010 through October, with sharp increases in bullish bets on crude oil, copper and silver.

Further confirmation came May 2, when silver prices, which had skyrocketed earlier, started to collapse and virtually all other commodities followed: crude oil, cotton, copper, grains and even gold.

After being compressor start, just heard to the crude copper pipe of a joint pressure from outdoor, namely with the fastest speed, tighten thick copper pipe joints.