Brazilian planemaker Embraer SA (EMBR3.SA) said on Saturday that a strike that began this week stopped it from delivering planes, processing bills and conducting other “critical operations” after union workers blocked factory doors. A metalworkers union in the city of Sao Jose dos Campos, which is just east of Sao Paulo, where Embraer is based, declared an indefinite strike late on Wednesday, blocking access to the company’s biggest factory to demand a 10 percent wage hike. Embraer said in a statement on Saturday that it has made the workers a final offer of a 7.4 percent raise.