久久久久久久久久啊视频_一区二区三级片毛片_国内高清看片久久_我要看免费av片在线观看 ,av不卡中文字幕在线观看_久久亞洲視頻_国产91福利

<source id="6ggk6"></source><em id="6ggk6"></em>

GUANGAO TENT|YUEHONG MEMBRANE STRUTURES

??????????

???? ???? ???????

???? ???? ??????? ????? ?? ???? ????? ????? ???? ?? ????? ??????? ? ??? ???? ?????? ?????? ???????. ????? ????? ?? 5-60 ??? ? ???? ????? ????? ??????????? ???????? ????? ??? ?????????? ???????. ??????? ???? ?????? ????? ????? ?? ???? ??????? ??????. ??? ?? ?????? ????????.

???? ?????? ???????? ???? ???? ??? ????? ????? ???? ??? ?????? ????? ???? ??????? ????? ????? ????? ????? ???? ??? ????? ????? ????? ???????? ????? ????? ?????? ??? ??? ???. ??? ?????? ?????? ?????? ???????? ???????? ??????? ?????? ?? ????? ???????.

???? ????? ?????? ????????: ???? ?????? ????? ????? ????? ????? ?????? ????? ??? ??? ???? ????? ?????? ??????? ??? ??? ???.

???? ?????? ????????: ?????? ?????? PVC ? ?????? ??????? ? ???? ABS ? ???? ????? ?????????? ????? ???? ????? 6061-T6 ? ???.

?????: ???? ????? ????????

????????: ???? ???????