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เอกสารมาตรฐาน
ญี่ปุ่น
JSA
JIS A 5731:2002
Recycled plastics inspection chambers and covers for rainwater
2002
11
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This Japanese Industrial Standard specifies the chambers for rainwater and covers to be used in housing site, which are made by using mainly recycled plastics and additives such as fillers, reinforcing agents, and the like, as occasion demands.