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.jd-abrasives.com
Quantitative fertilization technology for field crops
Quantitative fertilization technology mainly includes two aspects. One is to adjust the proportion of nutrients such as nitrogen, phosphorus and potassium to become balanced fertilization. The other is to cooperate with different fertilizers to regulate the proportion of nutrient supply during the growth period, which is called fertilization package. The nitrogen, phosphorus and potassium fertilizers required for field crops are nitrogen (n) 10-15 kg per mu, phosphorus (p2o5) is about half of nitrogen fertilizer, and potassium (k2o) amount is between nitrogen application rate and phosphorus application rate. In the north, the amount of nitrogen applied is close to that in the south. Field crops have a short growth period. Generally, phosphorus and potassium fertilizers, especially phosphate fertilizers, are applied as a base fertilizer at one time, 30%-70% of nitrogen fertilizer (mostly 50%) as a base fertilizer, and the remaining nitrogen fertilizers are mainly used for top dressing in crop rapid growth period. . The base fertilizer can be applied with nitrogen, phosphorus and potassium compound fertilizers, or nitrogen, phosphorus and potassium fertilizers can be combined.
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