1970QJ 3259-2005 Technical requirements for protective coating of aerospace electronic products
1989QJ 1781.2-1989 7385 Polyurethane varnish protective spraying process details
QJ 1781.2-1989 7385 Polyurethane varnish protective spraying process details was changed to QJ 3259-2005 Technical requirements for protective coating of aerospace electronic products.