What color (size, type, specification) is available for rotary shear in SUMWIC MACHINERY?
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How to raise the crab in the sea? Feeding the living crabs can be used in fish tanks or large glass cans, plastic cans and other containers,The bottom is covered with sand,Built into a slope.Adjust 0.4-0.5% concentration of salt water,Flooded to slope 1/3-1/4,A small filter can also be installed if conditions permit.The crab can be fed with minced fish, pork or shrimp,The food should be placed on the sand surface of the water,Just feed once a day,The food that can't be eaten should be cleaned up in time,So as not to pollute the water.In summer, 1/3 water is changed every week,The time for changing water in winter can be a little longer.The sea crab can't live.We can only raise crabs on land.
I'm going to do a sewage filter today, but I don't have a filter cotton. Where is it sold in Dahua? A treasure or forget it,If the filtering effect is not good, it will only delay your time,We have high efficiency air filter cotton in junior high school,There are viscose and stickers,Search Qingdao Shande filter,Put the size, thickness, filtration efficiency of the filter cotton you need,And other special requests to tell me ,.Recommended to buy Taobao,The filtering effect is not good,Don't pay.