... of magnesium carbonate, magnesium hydroxide, magnesium oxide and magnesium products, and also used as a raw material of ... ventilation pipe, anti-theft manhole covers,fire prevention board, partition board, the production of artificial marble of high-rise ... protein solidifier, snowmelt agent, refrigerant, dustproof agent, refractory material and so on. ( function(){ var aBigImageSrc = [ 'http://i00 ...