ISO 3284:1974现行
Continuous mechanical handling equipment for loose bulk materials - Dimensions of bends for use in pneumatic handling
出版：International Organization for Standardization
专家解读视频
UNE 58236:1993 - Identical
PN ISO 3284:2000 - Identical
ONORM M 9729:2003 - Identical
NEN ISO 3284:1977 - Identical
SS 3046 Ed. 1 (1978) - Identical
BIS IS 12567:1989 (R1999) - Equivalent
KS T ISO 3284:2006 - Identical
