A Philadelphia law firm is facing renewed claims that it withheld evidence in asbestos cases.

John Crane Inc., an Illinois-based sealing and gasket manufacturer, sued Shein Law Center and lawyer Benjamin Shein in the U.S. District Court for the Eastern District of Pennsylvania, claiming Shein Law fabricated and concealed information about its clients’ exposure to asbestos to obtain multimillion-dollar recoveries in lawsuits against JCI and other manufacturers.