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2016-07-15

CO2 foaming technology compared with the traditional advantages of Freon foam

CO2 foam technology will CO2 as foaming agent, directly to avoid the adverse environmental impacts brought by the freon as foaming agent, the energy conse......

2016-07-15

Han plastic equipment products produced a maximum width and thickness, respectively

Han plastic equipment production of extruded board maximum width can reach 1200 mm, thickness is 150 mm. ......

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国产色精品VR一区二区,97精品人妻一区二区三区香蕉,国产在线精品一区二区三区不卡,亚洲精品国产V片在线观看

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