The filtration technical aid which can do filtration work efficiently
[Detail]
A collapsible bicycle, while it is movable in the state where it folded up.
[Detail]
A foundation pile with enhanced pull-out strength.
[Detail]
The organic-waste-water processing method useful also to the waste water treatment which contains an organic matter in high concentration.
[Detail]
Device which mixes Nemacystus with various kinds of foods, and it processes into a granule
[Detail]
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