The nearly 1,400 striking workers at the plant in Vsevolozhsk, near St. Petersburg, are demanding a salary increase and more social benefits.
MORE: Coverage in Russian from RFE/RL's Russian Service.
Aleksei Etmanov, the head of the plant's labor union, said workers planned to launch an open-ended strike if the company failed to meet their demands.
Monthly wages at the plant average the equivalent of $600.
(AP, AFP)
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