洋货是否都比国货好潘先佐温石棉这种镁硅酸盐类矿物，是价廉物美的天然功能材料，因具有很多优异性能，被广泛用于化工、建材及国民经济各领域中。我国温石棉保有储量为５５１９万吨，仅次于加拿大和原苏联，居世界第三位。在英国博物馆内有一束石棉因其纤维长达１．４２... Whether the foreign goods are better than domestic goods, Pan Shizuo, a magnesium silicate mineral like chrysotile, is a cheap, natural and functional material. Because of its many excellent properties, it is widely used in chemical, building materials, and national economy. China’s chrysotile asbestos reserves of 55.19 million tons, second only to Canada and the former Soviet Union, ranking third in the world. In the British Museum there is a cluster of asbestos that has a fiber length of 1.42...