Worker moves window frame extrusions in a warehouse at the Milgard Windows & Doors' manufacturing facility in Tacoma, Washington, U.S., on Wednesday,...
Here's the heart of Dow's magnesium extrusion press. At upper left a magnesium alloy ingot two feet long and heated to 900 degrees slides down roller...
It takes only four men per shift, three shifts around the clock to turn out these lightweight magnesium extrusions at a rate of 3.5 million pounds a...
This unit, called an extrusion press, is operated by Mrs. Ruby Matthews. Rope-like material in her hands is an unfired rokide rod, used to coat...
Submarine lava globule of basalt 3.5 billion years old. Near Shaw River, northern Pilbara region, Western Australia.火山
