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  1. 【Sea and River Safety Discussion】Risks are common in areas without regulation - HCBBS Forum
  2. What is Profibus technology, and how does it differ from previous technologies? - HCBBS Forum
  3. What is the production capacity of Jilin Petrochemical Fertilizer Plant? Should it be imported equipment or domestically produced ones? - HCBBS Forum
  4. 【Sea and River Safety Discussion】Is wearing a safety helmet a matter of awareness or just a formality? - HCBBS Forum
  5. 【Haichuan Teahouse】Those inventions that were too advanced and thus phased out – Internet television in 1996 - HCBBS Forum
  6. 【Haichuan Pipeline Construction】Why does the branch pipe of this heating pipeline have to make a bend in order to connect with the main pipe? - HCBBS Forum
  7. How many kilograms of welding material are needed to manufacture one ton of steel structures? ? - HCBBS Forum
  8. Shenghong Group recovers carbon dioxide from industrial exhaust gases to produce photovoltaic-grade EVA resin - HCBBS Forum
  9. 【Major Chemical Equipment Innovations】037 – High-end, ultra-heavy container plates produced by Hebei Iron and Steel Wuhan Iron & Steel used in the core components of EO reactors - HCBBS Forum
  10. [Haichuan Tea House] Isn’t the speed limit for cars 120 kilometers? Why is there a speed of more than 200 kilometers on the car dashboard? - HCBBS Forum
  11. 【Civil Code Construction Contracts】The practice of splitting contracts no longer exists - HCBBS Forum
  12. The lost old crafts are no longer visible today! - HCBBS Forum
  13. 【Sea and River Night Talks】Such a spirit has always inspired us! - HCBBS Forum
  14. 【Haichuan Teahouse】Brain-teasing Series: A Matter of One Finger - HCBBS Forum
  15. Which process is used for synthetic ammonia in the Baling Hengyi technological upgrade project? - HCBBS Forum
  16. Is it true that zinc may experience a reversal of polarity at temperatures above 54°C in the presence of acids, bases, and other substances, resulting in the loss of its cathodic protection function? - HCBBS Forum
  17. 【Haichuan Pipeline Construction】How to avoid buying branded valves? ? Everyone, please share some tips!!!! - HCBBS Forum
  18. Guangdong petrochemical project pipe gallery giant - the total length of the outer pipe gallery is 19 kilometers - HCBBS Forum
  19. 【Hai Chuan opens his eyes】Give a thumbs up to China’s equipment manufacturing industry! 4,606 tons of raffinate tower installed at Guangdong Petrochemical! - HCBBS Forum
  20. Is it necessary to use cathodic protection combined with coating protection for the internal anti-corrosion of a 500m3 crude oil storage tank? - HCBBS Forum
  21. 【Sea River Civil Engineering Discussion】What are the main risks borne by the project owner? What to do when material prices rise? - HCBBS Forum
  22. 【Haichuan Chemical Industry Site】Beijing Research Institute of Chemical Technology included in the fifth batch of **Industrial Heritage List - HCBBS Forum
  23. A lonely railway offers its colors to passersby in late autumn - HCBBS Forum
  24. Inner Mongolia Jiutai's 10,000-ton carbon dioxide/syngas to aromatics pilot project received environmental impact assessment approval - HCBBS Forum
  25. 【Haichuan Equipment Guessing Game】High-temperature output power, dedicated to new energy - HCBBS Forum
  26. 【Haichuan Teahouse】Ten years with Haichuan – a new beginning! ! ! ! - HCBBS Forum
  27. 【History of Haichuan Pipes】In 1959, China’s first spiral single-sided submerged arc welded pipe was produced at Baoji Steel Pipe - HCBBS Forum
  28. Congratulations! China’s first ethane-to-ethylene project with independent intellectual property rights has been successfully commissioned! - HCBBS Forum
  29. [Ocean Hydrogen Energy] Is hydrogen energy safe? - HCBBS Forum
  30. [Haichuan opens his eyes] It turns out that big and small heads can still do this - HCBBS Forum
  31. 【Ethylene cracking】SCR module of the denitration system in the convection section of the cracking furnace - HCBBS Forum
  32. 【Sea and River Safety Discussion】Which department should be responsible for this matter? - HCBBS Forum
  33. [Haichuan Teahouse] If the property was announced to be withdrawn from the community, what would be your first reaction? - HCBBS Forum
  34. What are the essential resource requirements for applying for a special equipment production license for factory-prepared pipe sections? - HCBBS Forum
  35. Is hot-rolled steel sheet or cold-rolled steel sheet better for cable trays and ladder trays? - HCBBS Forum
  36. What is MTO-grade methanol? ? ? - HCBBS Forum
  37. 【Haichuan Teahouse】Brain Series: Do you know what this page number is? - HCBBS Forum
  38. 【Haichuan Chemical Salary News】Handover of the 800,000 tons/year ethylene plant for Changqing’s ethane-to-ethylene project - HCBBS Forum
  39. 【Sea and River Safety Discussion】With railings in place, is it still necessary to wear a safety belt? - HCBBS Forum
  40. 【HaiChuan Construction Discussion】Summary of Legal Bases for Contractors to Cope with Price Risks Amid Rising Building Material Prices - HCBBS Forum
  41. 【Major Industrial Equipment in the Chemical Industry】114 – Domestic production of large-diameter forced-sealing ball valves - HCBBS Forum
  42. 【Haichuan Equipment Guessing Game】What equipment and pipelines are the white ones on the outside of the pyrolysis furnace? - HCBBS Forum
  43. 【Major Equipment in the Chemical Equipment Industry】048 – Domestic large-scale methanol synthesis towers - HCBBS Forum
  44. 【History of Haichuan Pipelines】The photoelectric tracking automatic cutting machine successfully developed by the Shanghai Shipyard in 1965 - HCBBS Forum
  45. 【Haichuan Teahouse】What did people in ancient times wear during the long and cold winters? - HCBBS Forum
  46. 【Haichuan Pyrolysis Furnace】Structural features, construction techniques, and process optimization measures for the refractory lining of ethylene pyrolysis furnaces - HCBBS Forum
  47. [Haichuan Chemical Engineering News] Yongrong Holdings invests in a project in Nanchong, Sichuan, to build an integrated industrial chain for the production of 800,000 tons per year of functional new materials - HCBBS Forum
  48. 【Summary Post of Haichuan Installation Technical Instructions】--Uploaded and summarized by Haiyou Weifeng’s Ultraman - HCBBS Forum
  49. 【Haichuan Safety Discussion】Have you used an explosion-proof chain hoist? - HCBBS Forum
  50. 【History of Haichuan Pipes】In 2015, the world’s largest-bore bamboo-based pressure pipe was produced in Xiangyang - HCBBS Forum
  51. 【Haichuan Teahouse】A miraculous sea phenomenon appears in Dalian - HCBBS Forum
  52. 【Hai Chuan Teahouse】Why do Sichuan people call their aunts \"Nengneng\"? - HCBBS Forum
  53. 【Haichuan Teahouse】Brain-teasing Series: After thinking for a long time, I still don’t know how to cross the river - HCBBS Forum
  54. 【Haichuan Teahouse】How is the artificial moon in the urban area of Guiyang? - HCBBS Forum
  55. 【Haichuan Teahouse】Why are the stairs so wide yet there are few people there, while the elevator is crowded with so many people? - HCBBS Forum
  56. 【Haichuan Teahouse】Special Edition! Set another record! Wang Yaping became China’s first female astronaut to go outside the spacecraft! - HCBBS Forum
  57. A fire broke out at a chemical plant in Louisiana, in the southern United States, on the evening of the 18th, resulting in a chlorine leak - HCBBS Forum
  58. 【Haichuan Chemical Workplace】Is there a time limit for sick leave? Can I keep taking sick leave? - HCBBS Forum
  59. 【Engineering News】Chinese Company to Build 2.5 million tons per year LNG supply chain project overseas via EPC approach - HCBBS Forum
  60. What processes use spiral tubular reactors??? - HCBBS Forum
  61. 【Major Equipment in the Chemical Engineering Sector】032 – The first domestically produced anti-surge control valve has successfully passed the factory inspection - HCBBS Forum
  62. 【Major Chemical Equipment】106 – China’s longest shell-and-tube heat exchanger for use in towers - HCBBS Forum
  63. 【Haichuan Equipment Guessing Game】Covered in pustules all over the body; those who recognize it must be experts - HCBBS Forum
  64. 【Major Chemical Equipment】056 – China’s largest-diameter, highest-tonnage threaded heat exchanger - HCBBS Forum
  65. [Haichuan Modular Installation] Completed 65,000 tons Kuwait refinery module in 24 months - HCBBS Forum
  66. 【Sea and River Night Talk】Do you think it’s right or not? Will it turn this extra effort into indifference on Li Shuo’s part? - HCBBS Forum
  67. 【Haichuan Equipment Guessing Game】No electricity or steam required, no sparks or static electricity - HCBBS Forum
  68. 【Haichuan Safety Discussion】Take a look at pictures of proper use of hoists - HCBBS Forum
  69. Converting solar energy into liquid methanol can alleviate fuel shortages in our country - HCBBS Forum
  70. [Haichuan Hydrogen Energy] Sinopec’s first proton exchange membrane (PEM) hydrogen production demonstration plant has been put into operation at Yanshan Petrochemical - HCBBS Forum
  71. 【Haichuan Teahouse】The world’s first external hard drive - HCBBS Forum
  72. 【Major Equipment in the Chemical Equipment Industry】036 – Large-scale EO Reactor 7.3-meter Support Plate - HCBBS Forum
  73. 【Haichuan Teahouse】The suddenly popular early-morning drinks – are they available in your hometown? - HCBBS Forum
  74. 【Haichuan Convenience Store】What does the live-stream seller mean when he says to cause a surge in sales? - HCBBS Forum
  75. 【Haichuan Teahouse】Looking at this glass of water, what do you have to say? - HCBBS Forum
  76. 【Delicacies from Astronauts’ Hometowns】The spicy dishes from Tang Hongbo’s hometown in Xiangtan, Hunan - HCBBS Forum
  77. What are ECTFE-coated pipes? What medium is it for? - HCBBS Forum
  78. 【HaiChuan Safety Discussion】Can companies avoid liability by giving workers money to buy their own safety helmets? - HCBBS Forum
  79. 【Haichuan Teahouse】Is the popularity trend in July changing the rules again? - HCBBS Forum
  80. Signs of local efforts to accelerate the development of the hydrogen energy industry are becoming increasingly clear - HCBBS Forum
  81. [Haichuan Staff Canteen] Does your company have a staff canteen? Is there any charge for the staff restaurant? - HCBBS Forum
  82. 【Haichuan Modular Engineering】Which company manufactured these modules? - HCBBS Forum
  83. 【Sea and River Food Talk】Take a look at Sichuan noodle shops – what’s a good choice for breakfast? - HCBBS Forum
  84. 【Haichuan Equipment Guessing Game】Winter has arrived – should we eat hot pot? - HCBBS Forum
  85. 【Haichuan Workplace Chat】Is there cut-throat competition in your company? - HCBBS Forum
  86. Our chemical industry workers’ hands are in frequent contact with chemicals; do we perform any maintenance on them? ? - HCBBS Forum
  87. [Haichuan EPC] What is digital delivery? Has your project achieved digital delivery? - HCBBS Forum
  88. 【Haichuan Teahouse】How to divide any pentagon into four equal parts - HCBBS Forum
  89. 【Haichuan Teahouse】Brain Series: Final question with low scoring rate - HCBBS Forum
  90. [Haichuan Night Talk] The twelve and three astronauts from China all came from poor families. - HCBBS Forum
  91. 【Major Equipment in the Chemical Equipment Industry】Ethylene labyrinth compressor for 0.21–1.6 million tons/year polypropylene plant - HCBBS Forum
  92. 【Major Industrial Equipment in the Chemical Industry】078 - Deyang Dongfang Boiler Manufacturing Co., Lin Vaporization Furnace - HCBBS Forum
  93. [Sea and River Travel Talk] Why Are There So Many Grottoes in Sichuan and Chongqing? - HCBBS Forum
  94. 【Haichuan Case Study】Belt conveyor fire incidents that have occurred in recent years - HCBBS Forum
  95. [Chemical Equipment Powerful Equipment] 080-Lums Process designs and manufactures domestic polymerization reactors - HCBBS Forum
  96. 【Haichuan Civil Engineering Issues】Steel Plate Gripper - HCBBS Forum
  97. The polyester production capacity that has been shut down or reduced is 4.536 million tons - HCBBS Forum
  98. 【Sea and River Safety Discussion】Is this really the only potential hazard? - HCBBS Forum
  99. Does the perlite in the air separation cryogenic tank need to be replaced regularly? - HCBBS Forum
  100. 【Haichuan Teahouse】One-quarter of the students in middle schools who score over 700 points come from this province – what’s your opinion? - HCBBS Forum
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