The cold working methods of steel pipes mainly include cold drawing and cold rolling. The raw materials of cold-rolled steel pipes can be hot-rolled seamless steel pipes or welded pipes. The common characteristics of the cold working method of steel pipes are high dimensional accuracy and good surface roughness. It can produce very thin (up to 0.05~0.01mm) thin-walled tubes and very thin (up to 0.3~0.1 mm in diameter) capillaries.
Seamless Steel Pipe is a kind of pipe with hollow section, which is widely used to transport fluids, such as oil, natural gas, gas, water and some solid materials. Compared with solid steel such as round steel, steel pipe is light in weight when its bending and torsional strength is the same. It is a kind of economic section steel, which is widely used in pipeline engineering.
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Palos Heights FD history
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Hi everyone,
This message comes from Mike Summa. He recently shared something really interesting with me. On the Chicago Tribune’s website, he stumbled upon a fascinating photo slideshow featuring the Palos Heights Volunteer Fire Department. The images are from the 1940s and 1950s, capturing some memorable moments and showcasing how things have changed over time.
Mike mentioned that he thoroughly enjoyed browsing through these photos. They brought back memories of simpler times when communities were closely knit, and volunteerism was a cornerstone of local life. He felt that others might appreciate seeing these images as well. So, he decided to share the link with us.
Here’s what caught my attention: one photo shows men from the fire department taking a break in 1943 while building their new station. It’s such a human moment—hard hats and tools scattered around, laughter in the air. Another picture from 1951 highlights North Palos Fire Chief Fred Lange inspecting the aftermath of a devastating trailer fire where three people tragically lost their lives. It’s heartbreaking yet inspiring to see the firefighters' dedication even in those tough situations.
There’s also a shot of the fire department station itself in 1951, looking so different compared to today’s modern facilities. And who could forget the proud members posing with their shiny new fire truck? Fast forward to 1973, and we see volunteers suited up and ready to respond to emergencies. By 1980, the intensity of firefighting operations is evident in a dramatic scene where officials investigate the cause of a blaze that claimed two lives.
It’s amazing how these photos tell stories beyond just firefighting—they capture the evolution of not only the fire department but also the community they serve. Whether it’s the camaraderie among team members or the solemn duty they carry out, each image feels like a snapshot of resilience and courage.
If you haven’t already, check out the full slideshow—it’s definitely worth your time. Let me know what you think! Maybe it’ll spark some memories or inspire conversations about our own local heroes.
Take care,
[Your Name]
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