MPP???±?????

MPP???±???????????
1??MPP????????????????????????
2??MPP????????н??????????????????????
3??MPP???????????????????HDPE???
4??MPP?????????????????????С?????????????
5??MPP????????????????5??70?档
6??MPP????????
l MPP????????????????????????????????????????????????
l MPP????????????????????????????????????????????
l MPP????????????????????????????????????????
l MPP??????????С?????????75??????

???????

???????MPP??????

???????HDPE????????????


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