Specification for rubber materials for diaphragms in domestic appliances using combustible gases up to 200 mbar 采用压力达200毫巴可燃气体的家用器具膜片用橡胶材料规范
The instrument provides four graduation types for users to select and can measure temperature of the . . Kz - 2000 - a型热值指数仪是检测各种可燃气体热值指数和热值的仪表。
Small craft ; electrical devices ; protection against ignition of surrounding flammable gases iso 8846 : 1990 ; german version en 28846 : 1993 游艇.电气装置.对周围可燃气体引燃的防护
Rubber seals - static seals in domestic appliances for combustible gas up to 200 mbar - specification for material 压力为200毫巴及其以下的家用可燃气体静态密封用橡胶密封件的材料规范
