Flat washers are usually thin pieces of various shapes, used to reduce friction, prevent leakage, isolate, prevent loosening or disperse pressure. Such components are found in many materials and structures to perform various similar functions. Due to the limitation of the material and technology of threaded fasteners, the bearing surface of bolts and other fasteners is not large. Therefore, in order to reduce the compressive stress of the bearing surface and protect the surface of the connected parts, washers are used. Flat Washers,Stainless Steel Flat Washers,Large Flat Washers,Flat Rubber Washers Jiangsu Jiajie Special Screw Co., Ltd , https://www1.jiajiescrewcompany.com
Product description
Calcium formate is kind of functional additives which can be used for construction mortar and various concrete ,It can accelerate the hardness of cement and shorten the setting time ,Especially for the works in winter it can avoid too long setting time at low temperature
2.0
Technical indicators
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AppearanceÂ
White or yellowish powder
Purity
   ≥98.0%
Total calcium content
   ≥30%
Moisture
   ≤0.5%
PH(10%solu.)
    6.5-7.5
Water insoluble
    ≤0.2%
3.0
Application scope
Dry mortar      Concrete      Wear-resistant materials        Flooring industry
4.0
Packaging
25kg  each PVC plastic bag with paper-plastic compound liner
Special package can be on requests
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Model NO.: CN006-07
Trademark: Green Bird
Transport Package: 25kg Per Bag
Specification: Chemical Additives
Origin: China
HS Code: 2915120000
1.0