济南护栏上墙后用木楔块调整定位，再用射钉固定，不得用铁钉、木楔固定。

Ji 'nan fence wall with wedge block adjustment positioning, and nail fixed, not fixed with nails, wedge.

youdao

济南护栏上墙后用木楔块调整定位，再用射钉固定，不得用铁钉、木楔固定。

Ji 'nan fence wall with wedge block adjustment positioning, and nail fixed, not fixed with nails, wedge.

youdao