Any packaging automation factories instead of trading companies recommended?

In aquaculture Last year, 9-October or year 3-In April, I chose to kiss shrimp,Required weight 30-50g,Complete with limbs,Health, disease-free,Strong activity,The ratio of male to female is 2-3:1.Male and female lobsters have obvious external features,Easy to distinguish.1 lobster with mature sex,Male individuals were significantly larger than females;(2) the male dragon foot is bulky,There is a bright red wart on the outside of both ends of the Dragon foot,The female dragon feet are relatively small,Most female feet do not have red soft warts,Even if there is a color is weak;(3) the reproductive opening of the male is at the base of 5th pairs of foot,Female reproductive holes are opened at the base of 3rd pairs of foot;4 female shrimp with mature sex is swollen in the abdomen,Male shrimp belly is relatively small.The area of the shrimp pool is about 1200m2 square meters,Th

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What are the pipe fittings of homemade filter barrels? Overview of filter double barrel filter:The filter is an indispensable device on the conveying medium pipeline, usually installed at the inlet end of the pressure reducing valve, pressure relief valve, fixed water level valve or other equipment to eliminate impurities in the medium, to protect the normal use of valves and equipment. When the fluid enters the filter cartridge with a certain filter screen, its impurities are blocked, while the cleaned filter is discharged from the filter outlet. when cleaning is required, just remove the removable filter cartridge, after processing, it can be reloaded, so it is very convenient to use and maintain.General principles of filter selection:1. import and export size:In principle, the inlet and outlet diameter of the filter should not be less than the inlet diameter of the matching pump, which is generally consistent with the inlet pipeline caliber.2. nominal pressure:Determine the pressure