How to choose the valve standard code

GB national standards

MT Coal Industry Standards

GB / T National Recommended Standard

HB Aviation Industry Standards

GBn national standard (internal distribution)

QJ Aerospace Industry standards

GJB national military standards

QB, SG Ministry of Light Industry standards

ZB Industry Standards (Professional Standards)

JZ, JG urban and rural Environmental Protection Department standards

ZBn Industry Standard (Internal Distribution)

CB China Shipbuilding Corporation standards

ZJB professional military standards

LD Labor and Personnel Standards

JB Machinery Industry Standard (formerly) Machinery Industry Ministry standards

JC National Building Materials Bureau standards

JB / Z (former) Ministry of Machinery Industry guidance document

JJC National Bureau of Metrology standards

EJ (former) Ministry of Nuclear Industry standards

CAS China Association for Standardization standards

YB Metallurgical Department standards

CVA China valve industry standards

HG Chemical Industry standards

Q / TH (former) Machinery Industry Ministry of Chemical General Machinery professional standards

SY (former) Ministry of Petroleum standards

JB / TQ Machinery and Electronic Industry General Machinery Industry Internal Standards

SD hydraulic power standard

H high pressure pipe, fittings and fasteners universal design standards

Foreign standard code

ISO international standards

AISI American Iron and Steel Institute standards

ANSI American National Standard

API American Petroleum Institute standards

BS British National Standard

MSS American Valve and Fitting Manufacturer Standards Association standard

DIN German national standard

AWS American Welding Association standard

NF French national standard

ASI American Society of Standards

JIS Japanese Industrial Standards

MIL US military standards

ASME American Society of Mechanical Engineers standards

JPI Japan Petroleum Institute standards

ASTM American Society for Testing and Materials Standards

Epoxy Resins

Epoxy resin is a kind of polymer material with high performance. It is a two-component system composed of epoxy group and amine group, which forms polymer compound by mixing and reaction. It has strong adhesive force, corrosion resistance, heat resistance, electrical insulation and mechanical strength, and is widely used in aviation, aerospace, automotive, construction, electronics, ships and other fields.
The preparation process of epoxy resin is to mix epoxy resin monomer and amine Curing Agent in a certain proportion, and react at a certain temperature to form a polymer compound. Epoxy resins with different properties can be obtained by changing the type of monomer, the type and proportion of curing agent.
The advantage of epoxy resin is that its properties can be adjusted according to needs, and materials with high strength, high stiffness, high toughness, high temperature resistance, corrosion resistance and other characteristics can be prepared. Because of its excellent properties, epoxy resins are widely used in various fields. For example, in the aerospace field, epoxy resins are used in the manufacture of aircraft and rocket structural parts, composites, coatings and adhesives; In the automotive field, epoxy resins are used in the production of automobile body and engine parts; In the field of construction, epoxy resins are used in coatings, floors, waterproof materials and so on.
In addition, carbon fiber reinforced epoxy resin composites are also one of the most widely used epoxy resin products at present. Carbon fiber reinforced epoxy resin composites have the advantages of high strength, high modulus and low density, and are widely used in aviation, aerospace, automobile, sporting goods and other fields.
In general, epoxy resin is a high-performance material with a wide range of application prospects, and its properties can be adjusted according to needs, and it is widely used in various fields.

Epoxy Resins,Crystal Clear Epoxy Resin,Hardener Epoxy Resin,Liquid Epoxy Resin

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