DIN EN ISO 14114:2015 气焊设备.焊接、切割和相关工艺用乙炔汇流系统一般要求(ISO 14114-2014);德文版本EN ISO 14114-2015
Gas welding equipment - Acetylene manifold systems for welding, cutting and allied processes - General requirements (ISO 14114:2014); German version EN ISO 14114:2015