Chinese wood oil
1.Water soluble resin has been proved by experiment in lab to be capable of replacing synthetic grease or Chinese wood oil in foundry production so as to lower core gas generation and shorten generation time resulting in both dramatic reduction of waster caused by blowhole and effective improvement on working environment.
4.In autumn 1990, a museum in Beijing held an arts and crafts exhibition where over 700 pieces done by prisoners in calligraphy, seal cutting, sketching, oil painting, traditional Chinese painting, gouache, clay sculpture, stone carving, jade carving, wood carving, root carving, batik, embroidery, weaving, and paper cutting were displayed, which was well-received by the public.
