Cover Story: Dense disseminated bornite in wollastonite skarn ore.封面故事: 硅灰石矿石中的稠密浸染状斑铜矿.In addition to the natural copper and malachite, there are chalcopyrite, bornite , Hui copper, bronze, etc.除自然铜和孔雀石之外, 还有黄铜矿 、 斑铜矿 、...
刷漆之前先把塑料用模子定型.Die out the molded plastic before you paint it.其次是检查家具的油漆质量盒刷漆工艺.The next is inspects furniture's paint quality box to varnish the craft.喷漆家俱比刷漆好.Spraying the paint on the furniture is better brushing....