First, the straw treatment and formula corn cob and crop straw require fresh, mold-free, insect-free, dry, crushed into 3 mm size for use. One type of straw is not as high as the two types of production, and the two types are not as high as the three types. In order to play the role of nutritional complementarity, the formula generally used by the author is mainly corn cob, supplemented by other straws. Such as: corn cob 50%, bean straw 30%, wheat straw 20%, but also natural combination according to local resource advantages, such as peanut straw, corn stover, cotton straw. Other additives are: corn 5%, bran 5%, compound fertilizer 2%, quicklime 4%, water 180% to 220%, and carbendazim 0.15%.
2. Mixing Fermentation Pour lime and compound fertilizer into two containers and add water to stir and pour into the material to turn over. Be careful not to overdo it, so as to avoid water flowing, then transfer the auxiliary materials and then adjust the water once. Stacked into a rectangle, about 1.2 meters wide, about 1 meter high, length is not limited, take straw, broken sacks and other cover. In order to ensure sufficient water, the next day when turning over the pile, adjust the moisture according to the appropriate size. Fermentation time: high temperature 5-6 days, 7-8 days when the temperature is low, once every day in the early stage, twice a day in the late stage, so that the fermentation is uniform up and down, inside and outside. The fermented material is orange-red and has white fungus. It has aroma and no acid odor. It is not sticky and elastic. It is best to grab a hand and shake the water without dripping. It will be 24 hours before bagging. Ketamine is sprayed into the material in proportion.
Third, the principle of bagging and selecting bacteria for cultivation bags is to use a bag with a small diameter when the temperature is high, and a bag with a large diameter in a season with a lower temperature. The current more common specification is 26 cm x 50 cm. Bagging is carried out according to normal operation, and the inoculum is 15% to 20%. When the bacteria are sprayed, the distance between the bag and the bag should be well controlled according to the external temperature, and the temperature between the bags should be checked every day. During this period, the temperature inside the bag should be controlled below 28 °C, and the bag should be poured 3 to 5 times throughout the period of the period.
Product Name: silicon carbide coated multi grid abrasive sandpaper wet or dry sandpaper
Material: Silicon carbide
Size: 230mm x 280mm, 93*230mm
Substrate: Paper backing
Grit: 60#, 80#, 100#, 120#, 150#, 180#, 240#, 280#, 320#, 360#, 400#, 500#, 600#, 800#, 1000#, 1200#, 1500#, 2000#, 3000#, 5000#, 7000#
Coating: Electro coated
Feature: Waterproof, flexible, dual use, durable, cost-effective.
Application: Used for grinding and polishing metal, wood, glass, ceramics, plastic, varnish, stone, wall etc.
Grinding & Polishing Sandpaper
Soft Paper Backing / Uniform Sand / Wet & Dry Use
How to Choose Grit
From 60# to 2000#
Grit Size Introduction Suitable for
60# - 220# coarse sand, for hard and rough products Metal, wood, wall, stone
240# - 500# Frequently used, for secondary grinding Wall, furniture, stamp
600# - 1500# Fine sand, common used for grinding and polishing Metal, bodhi, amber, honeystone, jade and plastic
2000# and above Super fine, for polishing Amber, honeystone, bodhi, metal, nail, mirror polish etc.
Packing Details: 100 pcs/box, 1000 pcs/CTN.
Lead Time: For small quantity, 3-5 days after payment done.
For large quantity, can be negotiable.
Delivery Methods: by sea, air, expresses like DHL, Fedex, UPS, EMS etc.
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Abrasive Sandpaper,waterproof sandpaper,Electric Sandpaper,Sandpaper Waterproof,Silicon Carbide Sandpaper
Zhengzhou Jiading Abrasive Manufacturing Co.,Ltd , https://www.jd-abrasives.com