51吃瓜

??? ??? ??? ?? ??? ???? ?????? ????????? ?? ????? ??. ??? ???? ?????? ????????? ?? ????? ????? ?? ????? ???? ?? ???? ???? ????? ??? ??? ????? ??? ????. ??? ???? ????????? ?? ?????? ?? ????? ?????? ????? ??? ????? ?? ????? ?? ????? ??? ???? ?????? ?????? ?????? ?????? ??? ???? ??? ??? ????? ?????? ????. ?? 1? ?????? ?? ???? ????? ??? ?? ?? ??? ????? ??? ???? ???? ??vanized ??? ???? ???? ?? ???? ???? ???? ???? (mirror, brushed surface, matte surface), ???? ????? ??? ??? ??? ????? ?? ??? ?????? ???? ?? ?????? 2? ????? ???? ?? ????? ?????? ?? ????????? ?????? ????? ?????? ??? ????? ?????? ?? ????????? ????? ???. ??????? ????? ????????? ??? ????????? ?? ???????? ?? ???? ??????? ???? 2.5? ?? ?? ???? ??????? ??????? ?????? ????????? ?? ????????? ?????? 1.5? ?? ?? 3 ? "??????? ?? ????? ?? ?? ?????? ?? ?????? ???? ??? ??? ?????? ??? ???? ???? ??? ?????? ???. ????? ??? ??? ?? ????? ??????? ?? ????? ??? ???? ?? ????? ??. ????? ????????? ?????? ??????? 304 ???? ?? ????? ???? ???? ??????? ??? ?????? ??????? ????? ???? ??? ?????? ???? ?? ??? ????? ????? ????? 304 ??????? ???? ?? ????? ??? ??? ??? ???????? ???? ???? ?? ???? ??????? ??? ??? ??? ????????? ?? ????? ???? ????? ??????? SPCC ????? ?????? ?? ??????? ???? ?? ??? ??? ???? ?? ???? ???? ??? ??? ??? ?? ???? ??? ?? ????? ????????? ?? ??? ?????? ????? ?? ??? ?? ??????? ??? ???? ???? ??????? ??vanized sheets are used to reinforcing ribs, partitions, and cable trays. The thickness range of raw materials generally used is 0.2-5.0mm between, depending on customer needs. ???? ???? ???? ??????? ?????? ???? ????? ?? ????? ???? ???? ?????? ?? ???????? ?? ????? ?? ?? ???? ????? ??? ?? ?? ?????? ??? ?????? ??!