Eventually, instead of printing from these directly, he employed them to stamp out intermediate dies which were then used as moulds to mass produce letter blocks made of a lead alloy.
Micro-channel device, protected alloy surface in catalyst, alumina supported catalyst, catalyst intermediate, and method for forming catalyst and micro-channel device.
The present invention discloses one kind of pressure cast modified zinc alloy produced by adding modifier or modifying intermediatealloy during pressure casting of zine alloy.