̽صĎrlM㲻˹O(sh)ӋҪr˱Cķ(wn)Ժʹö횲ȡʩʹB(ti)ʯ\W(wng)ɴwĄȺ͏˿̎ܛػB(ti)ʯ\W(wng)ͺϵػ?sh)ػ^dl(f)׃ΕrB(ti)ʯ\W(wng)cwϵĦw(c)׃εB(ti)ʯ\W(wng)a(chn)һֱķ֧κdĶpС˵ػQ׃˵ػd͵ػķ(wn)B(ti)ʯ\W(wng)õˮԣɅRBˮйͬrһĹ̽Y(ji)ˮЧ
ʯ\W(wng)ɸ߿gߏչԵĵ̼䓽z߰PVC䓽zʹÙCеʹԓW(wng)ɵͽY(ji)(gu)ʯ\(j)ASTMEN˜ʹõĵ̼䓽zֱ(j)O(sh)ӋҪͬһ2.0-4.0mm֮gʯ\W(wng)䓽zĿȲ38kg/m2僌һ245g/m2ʯ\W(wng)Ƭ߅ֱһҪھW(wng)ֱpgϲֵLȲС50mm.ԱCgϲ䓽zĽ僌ӺPVC僌ӲƉ