GB 3509-1983

Metallographic examination standard for sleeve cast piston ring of reciprocating internal combustion engine

NORMA vydaná dňa 1.1.1983

The information about the standard:

Designation standards: GB 3509-1983
Note: NEPLATNÁ
Publication date standards: 1.1.1983
Country: Chinese technical standard
Kategória: Technické normy GB