玻璃钢玻璃鳞片胶泥
202607天津班FROSIO
说说气凝胶保温隔热
202606期烟台班FROS
随时看帖、分享到朋友圈
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ljchb:温度是多少?常温就用碳钢吧。 (2014-04-26 14:24)
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