DIN EN ISO 3821:2020-04 Gas welding equipment - Rubber hoses for welding, cutting and allied processes (ISO 3821:2019); German version EN ISO 3821:2019
2020DIN EN ISO 3821:2020-04 Gas welding equipment - Rubber hoses for welding, cutting and allied processes (ISO 3821:2019); German version EN ISO 3821:2019
2020DIN EN ISO 3821:2020 Gas welding equipment - Rubber hoses for welding, cutting and allied processes (ISO 3821:2019)
2010DIN EN ISO 3821:2010 Gas welding equipment - Rubber hoses for welding, cutting and allied processes (ISO 3821:2008); German version EN ISO 3821:2010