16.Cast nylon modified with laurolactam was prepared by activated anionic copolymerization under the adiabatic condition.Its mechanical properties were studied.
18.Another nought stencil seihan printing processes while nylon NET, Capron, wire and other Web material to the holes in the plate engraving stereotypes.
19.Materials for sling: terylen tape, nylon tape, elastomer thread, PVC tape, etc, having processes of noctilucence, fluorescence, repercussion, jacquard weaving by computer, etc.
20.Decomposition of mixed foliar litters from the four typical plantitions in upper reaches the of the Minjiang River was studied by using the litterbag method.