Where props can be used

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I haven’t used the props yet; I want to buy them and give them a try. If you go to the item shop, you’ll see that some items cannot be used in certain areas; ask why there is such a difference. For example: Areas where the theme color card can be used include: Production technology category (member material sharing area), Forum affairs discussion area, CAD drawing section, Refining technology exchange area, Certificate training – Registered engineer information exchange area, Advertising information, Sample upload area. In the storage and transportation engineering category (member material sharing area), there are areas for discussing civil engineering structures, production technology, environmental protection and pollution control, as well as storage and transportation engineering technologies. There are also SH petrochemical standards, HG chemical industry standards, GB national standard system, JB series standards, pipeline technology discussion area (member material sharing area), as well as areas for professional networking (ongoing efforts). There is also a forum usage tutorial area, SY petroleum system, foreign standards section, other standards sections, pipeline and valve technology discussion area, as well as areas for discussing membrane separation, pressure swing adsorption, and deep (normal) cryogenic technologies. There are areas for discussing project management techniques, chlor-alkali chemical industry topics, safety engineering discussions, sulfuric acid technology discussions, bioenergy technology discussions, pharmaceutical industry technology discussions, polymer and material technology discussions. There are also shared areas for membrane separation, pressure swing adsorption, and deep cryogenic technologies, as well as an elite section for these technologies (dedicated to organization). There is a general English materials area, a chlor-alkali chemical industry materials sharing area, water treatment technology discussion area, forum competition activity area, and a section for viewing points system explanations. There are also areas for sharing refining technology materials, polymer and material materials, project management materials, methanol and its downstream products discussions, as well as a standards and learning materials sharing area (uploading suspended, under organization). There is also a certificate training – Registered engineer information sharing area, DL power standards area (temporarily closed), standard uploading and sharing area (posting allowed, replies not permitted). There is a chemical industry English materials area, sulfuric acid technology sharing area, water treatment technology sharing area, pharmaceutical industry technology sharing area, non-ferrous metal smelting technology discussion area, industrial automation technology discussion area, and electrical technology discussion area. As for the areas where the upgrade card is allowed to be used: Production technology category (member material sharing area), Forum affairs discussion area, CAD drawing section, Refining technology exchange area, Certificate training – Registered engineer information exchange area, Advertising information, Sample upload area, Forum props center. In the storage and transportation engineering category (member material sharing area), there are areas for discussing civil engineering structures, production technology, management team office, forum post recycle bin (awaiting deletion), environmental protection and pollution control, storage and transportation engineering technologies. There are also SH petrochemical standards, HG chemical industry standards, GB national standard system, JB series standards, pipeline technology discussion area (member material sharing area), professional networking areas (ongoing efforts), forum usage tutorial area, SY petroleum system, foreign standards section, other standards sections, pipeline and valve technology discussion area, as well as areas for discussing membrane separation, pressure swing adsorption, and deep (normal) cryogenic technologies. There are areas for discussing project management techniques, chlor-alkali chemical industry topics, safety engineering discussions, sulfuric acid technology discussions, bioenergy technology discussions, pharmaceutical industry technology discussions, polymer and material technology discussions. There are also shared areas for membrane separation, pressure swing adsorption, and deep cryogenic technologies, as well as an elite section for these technologies (dedicated to organization). There is a general English materials area, a section for checking member privileges, a chlor-alkali chemical industry materials sharing area, water treatment technology discussion area, forum competition activity area, and a section for viewing points system explanations. There are also areas for sharing refining technology materials, polymer and material materials, project management materials, methanol and its downstream products discussions, as well as a standards and learning materials sharing area (uploading suspended, under organization). There is also a certificate training – Registered engineer information sharing area, DL power standards area (temporarily closed), standard uploading and sharing area (posting allowed, replies not permitted). There is a chemical industry English materials area, sulfuric acid technology sharing area. Why can’t cards like the upgrade card be used in areas such as automatic control? It seems not very fair to some districts! Since it’s also a technical exchange area, what’s the difference then? Last edited by Free Dust on 2009-2-8 12:23]