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Which level is higher between anti-corrosion grade WF1 and F1?

Corrosion prevention is the use of various methods to protect metal objects that are prone to rusting, in order to extend their service life. Generally, physical corrosion prevention, chemical corrosi……

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What does the anti-corrosion grade WF1 mean for lighting fixtures?

Corrosion prevention is the use of various methods to protect metal objects that are prone to rusting, in order to extend their service life. Generally, physical corrosion prevention, chemical corrosi……

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The process of applying for coal safety certification for imported products

Many traders and importers do not know how to apply for coal safety certification when importing electrical equipment underground in coal mines. Below, Zhongnuo Testing will provide a detailed introdu……

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Knowledge Q&A on Applying for MA Certification Mark

1、 What are Coal Safety Certification and Coal Safety Mark? Coal Mine Mark Certification (MA Certifi……

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Requirements for Relevant Materials of Coal Safety Certification

1、 Preparation of Materials for Applying for Coal Safety Certification: 1. Enterprise Standard 2. Pr……

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General requirements for explosion-proof product design

1. Explosion proof shell material 1.1 Common metal materials include cast steel, cast iron, welded s……

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What should companies do if they don't understand explosion-proof design?

Zhongnuo Testing has been engaged in the explosion-proof certification industry for many years and has encountered various customers, increasingly feeling the diversity of customer needs. As a one-sto……

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Introduction to Explosion proof Types in Explosion proof Design

1、 Explosion proof electrical equipment "d" explosion-proof enclosure: capable of withstan……

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Basic Overview of Explosion proof Design

Electric motors, electrical appliances, and instrument products used in explosive hazardous environments in petroleum, chemical, military, pharmaceutical, and other enterprises can generate arcs, spar……

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Specification for on-site explosion-proof safety inspection in dusty areas

1、 Explosion proof Safety Inspection Specification for Dust Explosion Sites GB15577-2007 Dust Explos……

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