标 准 号：GB/T 2550-2007 简体中文标题：气体焊接设备 焊接、切割和类似作业用橡胶软管繁体中文标题：气体焊接设备 焊接、切割和类似作业用橡胶软管English Name：Gas welding equipment -Rubber hose for welding ,cutting and allied processes...