In order to use "Cinnabar Indonesia", Shanghai West Cold Printing Society, Beijing Rong Baozhai, Suzhou Jiangsi Xutang and Zhangzhou Babao Ink are all famous and the best.
Most of the fine print is inked with cinnabar. Especially the black background of the copybook, be sure to use vermilion ink. Since the Qing dynasty, the red color has been aggravated, and even ancient inkpad has been used to achieve quaint effect and make it profound and dignified. More exquisite, cover it once to avoid being too light, and cover it again to increase the thickness.