91精品国产色综合久久I伊人91在线视频I伊人久久亚洲色欲综合网站I超碰97人人做I青青操在线香蕉在线I伊人网亚洲I观看免费视频I日产韩版91精品二区三区I青青操在线免费视频I久操日韩I鲁一鲁网站I伊人9区

24H????????
010-80526686
???λ?????? > ????? > ?????? > ??????

ZS-PY-19

?????2018-01-30  ????????????  ?????????199

???????????

????????
???棺?????“???”?????????????1.5mm?????????????????????????????á?
??????????“????”?????????PU?????????≥35kg/m³???????≥30kg/m³???????40%????????з????????ε???????
??壺????“????”??E0?????????????????????????12-15mm?????μ?????????0.1mg/L??
?????????“???”????????????????????????????????????
??????????“????”??????????г?100mm??????250kg?????????30???????
??????????????????????????????????350mm?????????+??????????????

??????

(1) ????????綽 ???????????????????????????????????????,????????? ????????????????Щ????????????????????????????????,?????????м????? ??????????????????? ???????????? ??????????????????,??????????????????????!

(2)????????廷????????,?????????????????,????????,????????κ?????????,???????? ?????????!

?????????綽:010-80526686  ????:hbzsjj@126.com

                ???:13911405958   QQ:739463200