The real moral is you never really know what the Chinese are using in there materials. In the US cast iron pipe manufactories are required to mark there piping with a date and name of the plant the pipe is made in. Most companies paint this on the exterior of the CI Pipe. Several years ago I was shown pictures from a Chinese CI plant where they had old women with paint rollers making there CI pipe. The problem was that the plant name that they were marking on the pipe with had been closed for several months, and they were using the same date stamping for weeks w/o changing the date. So I personally don't also trust the Chinese.The moral to that story is don't buy shackles made from Chinese horseshoes, or put another way, if you think that Warn's anchor shackles are made the same way, you may not be paying attention.
Many remember this:
"Chinese drywall" refers to an environmental health issue involving defective drywall manufactured in China, imported to the United States and used in residential construction between 2001 and 2009 — affecting "an estimated 100,000 homes in more than 20 states."
In samples of contaminated drywall, laboratory tests will detect off-gassing of volatile chemicals and sulfurous gases — including carbon disulfide, carbonyl sulfide, and hydrogen sulfide. The emissions worsen as temperature and humidity rise, will give off a sulfuric (rotten egg) odor and will cause copper surfaces to turn black and powdery, a chemical process indicative of a hydrogen sulfide reaction and an early indication of contaminated drywall. Copper pipes, electrical wiring, and air conditioner coils are affected, as well as silver jewelry.
Homeowners have reported health symptoms including respiratory problems such as asthma attacks, chronic coughing and difficulty breathing, as well as chronic headaches and sinus issues
So I don't always trust what the Chinese say about there products.
Now maybe as stated before Warn has better quality standards and does a lot of spot checking the process than others. I like others run a WARN winch and have for years.
Not sure that I would guarantee that Smittybuilt shackles are built the same but they also come from china.