51吃瓜

1, ????? ????? ?? ??????? ????? ????????? ???????????? ?????? ??? ?????

1. ????? ????????? ???????? ????? ??????? ??? ???????? ??????????? ??? ?????????? ?????? ??? ????????? ??????;

2. ?? ??? ?? ???? ?? ??? ?????????? ??????? ??? ????????? ??? ???????????????? ??? ????????? ?? ??????? ????????? ???????????.

3. ?? ??? ?? ???? ??ching ??????? ?? etch convex ??????????? ???? ???????, ????????um ????? ????? ???????????? ?????.

2, ?????? ????? ?????? ??????????? ??оружения ??? ????????:

?????? ????? ??????????, ?? ??? ?????? ???????????, ????? ??? ?? ?? ???? ???? ?? ?????? ???????? ?? ??? ????????? ?????, ???? ??? ?????? ????? ?? ?????? ?????? ????? ?? ???? ???? ??? ??? ????? ???? ??????????? ??? ???? ?? ??????????????????? ??????? ??? ?????, ????? ??? ?? ?????? ?????? ?? ??? ???? ???? ? ????? ????????? ?????, ?????????????? ???? ???????? ?????????? ??? ?????.

??? ???? ????????? ??? ?????????? ???? ??? ?? ???? ??????? ????? ?????? ???? ??? ????? ???? ???? ???? ?? ????? ?????????? (???????? ???? ?????????) ????? ???? ?? ??????????? ?????????? (???????? ???? ?????????). ???? ?? ???????? ???????? ??????????, ?? ??? ???? ???? ???? ???? ????? ?? ??? ???? ? ????? ???? ??????????????????. ?? ??? ??????? ??? ??? ?????? ??? ??? ?? ???? ???? ????? ????? ???? ??????????, ??? ??? ????????? ??? ?????????. ???? ?? ??? ???? ?????, ?? ????? ??? avan???? ???? ???? ??????????, ?????????? ?? ??? ??? ???? ?????????? ???? ??? ????????? ??????????, ????? ??? ?????? "????? ???? ??????? ????? ?? 1980?? ????, ???? ????????? ???arma??? ??? ???? ??? ??????? ?????? ???? ???? ????????? ??????. ??? ?? ?????? 1980?? ????, ???? ??? ?? ????????????? ???? ????????? ??????? ????? ?????? ????? ??? ???? ?????? ??? ??????? ??????? (??????????), ???? ????????? ???? ?? 1980?? ???? ????? ?? ????? ????????? ??? ????? ???????????????????????????, ???? ???? ???? ??????? ?? ?????? ?????????? ???? ????????? ?????????????, ???? ???? ??

3, ????? ????? ?? ??????????? ???????? ????? ???????

?? ????? ????? ??? ??? ???????????, ?????????????? ???????????, ???????? ??? ??????? ????? ??? dyeing, ??????? ????????????????????????, ?????????????????? ?????????????? ????? ?? ????? ???????????,

4, ???? ???????? ????? ????????? ???????????:

1. ?????? ????: ?? ?????, ???????, ???????, ???????????????, ??? ??????? ???? ??? ?????? ????? ?????? ????? ????? ?? ??????????? ???? ??? ????????. ??? ????appearance ???? ??? ??????? ??????? ?????? ????????? ???? ????? ???? ?????????

2. ???????????: ?? ??? ????????????? ????, ????? ??????????? ??????, ??? ??????? ??????? ??? ???????? ????????????????, ????? ???????? ??? ?????????????

5, ?????????????? ????? ???????? ?????? ???? ???????????? ????:

??????????? ???? ??? ??????? ???? ???? rein, ????????? ???? ??? ????? ??????????? ????, ??? ?? ??????????? ???? ???? ???? ?????????????.

6,

1. ????????????? ?????????????? ????????? ??? ????? ???????? (???? ????????)

2

3. ??ching convex letting bottom layer treatment, high gloss cutting (etching), high gloss signage

7, ?? ????? ?????????? ????????????????? ???????? ????? ???????????? ???????:

Electroplating generally includes gold plating, silver plating, bronze plating, antique copper plating, nickel plating, sand nickel plating, and two-color gold plating.

??? ??? ????? ?? ???????? ??? ???????? ?? ???????? ?? ????????????? ??? ??????? ???? ?????????????????. ???? ??? ?????? ??? ?? ???, ?? ???? ???????? ????????? ?? ??????? ????????. ??? ???????? ??? ????? ?????????? ???? ???????, ????? ??? ??? ????????? ??? ?????????? ???? ??? ??? ??????