东莞人行道金属防护隔离栏杆 安全防护栏 广州批发京式护栏

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东莞人行道金属防护隔离栏杆 安全防护栏 广州批发京式护栏

Dongguan sidewalk metal protective barrier safety barrier Guangzhou wholesale Beijing type barrier

打入根立柱时，当打入到立柱顶面至路缘石顶面70cm时。

When driving the first column, when driving to the top of the column to the top of the curb 70cm.
在打桩机导杆上记录下桩锤的位置。

Record the position of the hammer on the driver guide.

以后每打一根立柱，当桩锤下落到记下的位置时就说明立柱已经打到位了。

After each column is driven, when the hammer falls to the recorded position, it means that the column has been driven in place.

汕头新款市政护栏 湛江人行道隔离护栏 n型京式隔离栏

Shantou new municipal guardrail Zhanjiang sidewalk barrier n-type Beijing barrier