KS B ISO 10303-439-2020 Industrial automation systems and integration-Product data representation and exchange-Part 439:Application module:AP239 product life cycle support
2020KS B ISO 10303-439-2020 Industrial automation systems and integration-Product data representation and exchange-Part 439:Application module:AP239 product life cycle support
2015KS B ISO 10303-439:2015 Industrial automation systems and integration-Product data representation and exchange-Part 439:Application module:AP239 product life cycle support
2007KS B ISO 10303-439:2007 Industrial automation systems and integration-Product data representation and exchange-Part 439:Application module:AP239 product life cycle support