?????????-pg电子官方网站

?????????4?????4.1????????????????????,???????,?????,?????,????????,?????

4.2????????????????????,???????????????????????????,??????????????,???????????,?????,????????10x10x10cm??????????????4.3 ?????????????????????,???????,

??????????????,????????????????4.2????????????????????,??????????????

????,?????,????,??????????
9??????????,??(??????????????????)??????

????,???????????????????????????????,????????????????????????,???????????????????????,?????????????????????????????16~20cm?8???????????????2.5mpa

?????????????(100%????)?????????(??????????????????????????)?????:?????????

????a???,????g/t169-2005???2???
???????1000??????????????4??,?????????,????????a?????????

????????????,????????????????c25????????????????????????????????????50cm????????,????????????????????????,??????????;????????????,??????,???????????

3?????????????????75mm????120?????????85mm,??????????,