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.
The related abrasive products we can supply is Flap Disc Adhesive , Abrasive Flap Disc, and Flap Disc Making Machine, Flap Wheels , Flap Wheel Machine , Abrasive Sanding Disc, if you have any needs about abrasive tools, please kindly feel free to contact us.
Abrasive Sandpaper,waterproof sandpaper,Electric Sandpaper,Sandpaper Waterproof,Silicon Carbide Sandpaper Zhengzhou Jiading Abrasive Manufacturing Co.,Ltd , https://www.abrasive-jd.com
Human excrement is combined with ferrous sulfate. Adding 500-600 g of ferrous sulfate per 100 kg of human excrement can convert ammonium carbonate in human excrement into stable ammonium sulfate, which can protect fertilizer and deodorize and prevent the loss of nitrogen volatilization.
Human excrement is combined with superphosphate. Add 5 kg of superphosphate in every 100 kg of human excrement, stir it evenly and store it for 3 to 10 days, which can convert the highly volatile ammonium carbonate in human excrement into stable ammonium phosphate, thereby increasing human excrement. The phosphorus element, with phosphorus and nitrogen, greatly increased fertilizer efficiency.
The grass ash is matched with the superphosphate. Use 6 kg of grass ash to soak 30 kg of water, add 2 kg of superphosphate. After 6 hours, add 100 kg of water and mix well. After standing and sedimenting, take the clear liquid and spray the crop to obtain the same fertilizer effect as potassium dihydrogen phosphate.
The pile of manure is combined with ammonium bicarbonate. Weeds, crop straws, leaves, etc. are smashed into pieces, and 0.5% to 1% of the specific gravity of ammonium bicarbonate is added together with human excrement and sputum, and then sealed with mud. After fully decomposed, high-efficiency biological potassium fertilizer can be obtained. .
Manure is combined with superphosphate. Add 20% calcium superphosphate to the animal manure from the livestock circle and mix it for 20 days. It can not only prevent the loss of nitrogen in the manure, but also accelerate the decomposing process of manure and increase the effective phosphorus content.
Scientific and rational combination of farmyard manure and chemical fertilizer can not only prevent the loss of volatile components, but also significantly improve fertilizer efficiency.
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