
HAND AND MACHINE-OPERATED CIRCULAR SCREWING DIES FOR PARALLEL PIPE THREADS - G SERIES (ISO 4231:2016)
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
HAND AND MACHINE-OPERATED CIRCULAR SCREWING DIES FOR PARALLEL PIPE THREADS - G SERIES (ISO 4231:2016)
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频