DIN 21637:2016
采矿的空气调节系统.运输轨道翼形通气门.减压式双翼门

Air regulation systems for mining - Wing air doors for haulage tracks - Double-wing type doors with pressure reduction



DIN 21637:2016相似标准





Copyright ©2007-2022 ANTPEDIA, All Rights Reserved
京ICP备07018254号 京公网安备1101085018 电信与信息服务业务经营许可证:京ICP证110310号