肇庆河道护栏 304不锈钢复合管护栏 广州批发桥梁护栏
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肇庆河道护栏 304不锈钢复合管护栏 广州批发桥梁护栏
Zhaoqing River guardrail 304 stainless steel composite pipe guardrail Guangzhou wholesale bridge guardrail
不锈钢材质又分好几种200，201，300，301，304等。
There are several kinds of stainless steel materials, such as 200201300301304.
市场上一般为301材质，304的效果较好，其次301。
Generally, 301 material is used in the market, and the effect of 304 is better, followed by 301.
Zhaoqing River guardrail 304 stainless steel composite pipe guardrail Guangzhou wholesale bridge guardrail
不锈钢材质又分好几种200，201，300，301，304等。
There are several kinds of stainless steel materials, such as 200201300301304.
市场上一般为301材质，304的效果较好，其次301。
Generally, 301 material is used in the market, and the effect of 304 is better, followed by 301.
