Istifoda shuda dar tarkibi sistemai zamin kashidan, molniya zakhira va uvarinai potencialho. Moqsad baroi qabul kardanai guli zanjirshuda (tokootvodho) ba fal'tsi qopiqi sathai fal'tsiy.
Az stal ba peshbini garm zink ba GOST 9.307-89.
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