Patent - Kinkou (Suzhou) Copper Industry Co., Ltd.

Ein Hawl Eiddo Deallusol

*Dull o wneud gwiail gwifren aloi (patent Rhif:zl 201010518772.6).

*Math o offer a'i ddull ar gyfer gwneud gwregys aloi copr trwy flaendal chwistrell (Patent Rhif:zl 201210411177.1).

*Cryfhaodd dull o baratoi gwasgariad copr ag alwminiwm ocsid (patent Rhif:zl 201310151407.x).