China's standard code system is a comprehensive framework that categorizes various national and industry-specific standards. Here's an improved and detailed version of the original content: China has a structured system for standard codes, which are essential for regulating industries and ensuring quality and safety. These codes include both national and sector-specific standards. For instance, **GB** stands for "Guo Biao," or National Standards, while **GB/T** refers to "Recommended National Standards." **MT** represents Coal Industry Standards, and **HB** covers Aviation Industry Standards. **GBn** is used for National Standards that are internally distributed. Other key codes include **QJ** for Aerospace Industry Standards, **GJB** for National Military Standards, and **QB/SG** for Light Industry Department Standards. **ZB** indicates Industry Standards (Professional Standards), and **JZ/JG** relates to Urban and Rural Environmental Protection Department Standards. **ZBn** is for Internal Distribution Industry Standards, while **CB** refers to China Shipbuilding Corporation Standards. Additionally, **ZJB** is for Professional Military Standards, **LD** for Labor and Personnel Standards, and **JB** for Machinery Industry Standards. Previously known as "Machinery Industry Standards," **JC** refers to Building Materials Bureau Standards. **JB/Z** was used for Ministry of Machinery Industry Guidance Documents, and **JJC** represents National Bureau of Metrology Standards. **EJ** was previously used for Nuclear Industry Standards, and **CAS** stands for China Association for Standardization. **YB** is for Metallurgical Department Standards, while **CVA** represents China Valve Industry Standards. **HG** refers to Chemical Industry Standards, and **Q/TH** is for General Machinery Industry Standards in the chemical sector. **SY** was formerly used for Ministry of Petroleum Standards, and **JB/TQ** covers Machinery and Electronic Industry Standards. **SD** refers to Hydraulic Power Standards, and **H** is for High-Pressure Pipe, Fittings, and Fasteners Design Standards. Internationally, several organizations also issue widely recognized standards. For example, **ISO** is the International Organization for Standardization, **AISI** is the American Iron and Steel Institute, and **ANSI** is the American National Standards Institute. **API** stands for the American Petroleum Institute, and **BS** is the British Standard. **MSS** is the standard from the American Valve and Fitting Manufacturer Standardization Association, **DIN** is the German National Standard, and **AWS** is the American Welding Society. **NF** represents the French National Standard, **JIS** is the Japanese Industrial Standard, and **MIL** refers to American Military Standards. **ASME** is the American Society of Mechanical Engineers, **JPI** is the Japan Petroleum Institute, and **ASTM** stands for the American Society for Testing and Materials. These international standards play a crucial role in global trade and industrial cooperation. This system ensures consistency, quality, and compatibility across different sectors in China and internationally.

PVC Color Film

PVC color film

thermoforming medical grade PVC packaging sheet PVC Film roll

PVC is a plasticizer free, calendared rigid film. It is available in a wide range of colors and thickness.
PVC offers a potent chemical resistance and optimized protection.
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Thickness	0.08mm – 0.80mm(80micron – 800micron)
Width	100mm – 1400mm
Colors	Transparent ,Glass clear ,Clear with blue tint,Amber color ,Orange color ,White color Blue color ,Brown color ,Pink color ,Green color,Yellow color
Transparency	Transparent,semi-transparency,opaque
Surface	Glossy
Form	by roll or cut sheet form
Hardness	Rigid
Outer diameter	≤700mm
Inner core diameter	3"(76mm)

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