NP 521-1988
Asbestos-cement pressure pipes Characteristics and acceptance
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NP 521-1988
Standard No.
NP 521-1988
Release Date
1988
Published By
PT-IPQ
Latest
NP 521-1988
NP 521-1988 history
1988
NP 521-1988
Asbestos-cement pressure pipes Characteristics and acceptance
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