Copperstampingsa - Latest News 2026-07-21T13:38:31+00:00 urn:uuid:df17ff53-ba32-0c1f-7537-ec2ecdb5ca74 The appearance of phosphor bronze is purple-red urn:uuid:36e0d500-8543-4f45-102c-542a2ef70596 2020-08-21T06:28:17+00:00 This phenomenon is often referred to as the hydrogen disease urn:uuid:63057e45-aae3-528b-e905-3a2fbe6bbc2a 2020-08-07T07:15:05+00:00 Phosphor bronze has the characteristics of ductility urn:uuid:a5e71da3-63a6-ee7b-da5d-5fc340f95d98 2020-07-16T07:05:11+00:00 The mold base metal chromium copper has the characteristics urn:uuid:70479661-8813-2451-c93f-d4e4bd90790c 2020-07-09T06:02:21+00:00 Nickel has excellent electric vacuum function urn:uuid:cbe4732d-5ff8-9902-6404-0b16af833a60 2020-06-30T05:31:53+00:00 The mechanical function is stable at high temperature urn:uuid:68ff4baf-6009-1fb5-a9ea-3cd5afcc9caa 2020-06-23T05:54:09+00:00 Copper deficiency will reduce the pigment oxidase urn:uuid:3825d735-c5b0-ec0a-8181-db1789d6a2c0 2020-06-16T03:20:43+00:00 The ordinary copper strip is heated in a reducing atmosphere containing urn:uuid:8e76276a-e5ec-a6fe-f3df-fdca6b789162 2020-05-14T05:56:17+00:00