Mancini Stainless Steel roller rockers
Picture on their page tells me it's the same set that PRW and speed master sell.
Definitely Chinese made, I bought I set for $161 on Black Friday, cleaned and inspected them thoroughly, didn't find any issues, other than being a bit gritty.
I'd buy direct from SM for $240, if I wanted that particular set.
Mopar Chrysler SB 318 340 360 1.5 Stainless Steel Roller Rocker Arms W/ Hardware