hein werner and most of the other well known Jacks from years ago are all made by SHINN FU mfg and some of the assembly is done here allowing them to claim made in the USA. (I think they put the stickers on here LOL). Shinn Fu bought the rights to the names and consequently you have junk jacks at a premium price.
How did I learn all this ?? It was a frustrating 1-2 years with at least 10 different "brand name" jacks that all failed within 1 day to 3 months.There are only a couple that still are one of which is the Milwaukee [url=http://www.milwaukeejack.com/products.html] LINK TO THEIR SITE[/url They have been making the exact same jacks since the mid 40's, but be prepared to pay for QUALITY!!!!
I finally did after several go round with name brand jacks (like HW) purportedly being made in the USA..
I know have 3 Jacks, and 40+ year old 1-1/4 T Hein Werner, An OTC 3T Floor boss that is no longer being made , It was and is a USA made jack. and a Milwaukee model 20.
On a side note a very good friend owns a Mom and Pop tire store locally. they have been in business since his Father opened it in the 20's. They do nothing but tires PERIOD!!!!! and a lot of them. Better than 70% are done with floor jacks he was buying Snap OFF jacks and they would make it a year if he was lucky.
He happened to be be in harbor Freight just after they released their Daytona jacks. The manager talked him into trying 2 of them with a no questions asked money back guarantee. He said he gets 3-4 years out them at less than 1/3 the price of the Snap OFFS. If i were looking for a jack I'd buy one of them. HE should be a Jack testing station as they get USED and abused. 3 years at his place would easily exceed 20-30 years at my shop.