hg 20559.2
hg 20559.2, Total:2 items.
The international standard classification for "hg 20559.2" includes: Equipment for the chemical industry .
The Chinese standard classification for "hg 20559.2" includes: Non-metal chemical machinery equipment .
Professional Standard - Chemical Industry
- HG/T 20559.2-1993 Piping instrumentation flow chart design regulations Piping instrumentation flow chart equipment graphic symbols
未注明发布机构
- HG 20539-1992 Reinforced polypropylene (FRPP) pipe and fittings
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