?? ??????????????,?????????????
![](https://image.chezhanri.com/2019/0301/20190301162627735.jpg)
????:1????:????????
2????????????
3?????
4??????95??
5??????????
???? ????????????????:?????????????????????
???????????,????????????????(8?????15????????),???????????????????,?30??,?????200??????????????????????????,??,?500?????????
?????,?,??,??????????,?????????????499????????????,?????????????????100??????????????????,?????????????????,???????????????
?????????????2022??,?????????????????????????????????????????????????????????«?????????????“????????????????????”????????????????????????»????,??500????2023??????500?????,????,???????,???500???????????,??????500????????????????
??,??,?????????????????????????,????,?????????????????30?,?????200????????????????????,????????????????70????????220??????,?????????????60??????,500??????????,???,???????????100%?
?,???????????????,???,56%??,2023???????????20%??????,?????????????
???????????,??????????,2023??????GB/T 19855-2023«????????????»,??????GB/T 19855-2015«????????????????»,???????????????????2024??4?????1?????????????????????,?????,?????????????????,?????????????????,?,???????????????????
?????????,???,???? ??:???