พลาสติก
เอกสารมาตรฐาน
ญี่ปุ่น
JSA
JIS K 6932:2018
Recycled plastics stakes
2018
15
Offline
This Standard specifies the requirements for the recycled plastics stakes used for surveying control points and miscellaneous boundary markers. However, stakes used for surveying work under special conditions shall not apply.