Recently I found a site http://www.pressure-die-casting.... which sells cast and die-struck rings,yet I have got less knowledge about this kind of item,is there anybody who can help me decide how ...
That would depend on the application. Aluminum alloys, cast under sufficient pressure, are sometimes as durable as aluminum forgings. ALCOA is the leader in forged and pressure-cast aluminum structures.
Rocmike in the last 23 hours under your Top Renner alias you have posted 4 hours. Under your Paul Wittenburg 3 hours. Under your Bill alias you have posted 7 hours and still posting. This is not counting your other aliases plus anonymous. Do you have any kind of life?