دانستنیها
نوارهای گرافیتی
Description:Corrugated Graphite Tape--It cut from pure graphite roll by exact lathe, and then press it with corrugated profile by special calender. Style TA440CS is corrugated graphite tape with self-adhesive coating.With corrosion inhibitor, are also available on request. CONSTRUCTION: TA 440 Expanded Graphite Tape It cut from pure graphite roll by exact lathe, normal for filler of spiral wound gaskets and die-formed graphite ring. Style TA440S with adhesive coating, it is easy to assemble. APPLICATION: Designed for use as packing, just with wrapping tape to stem or shaft, and then stuffing, endless packing can be formed. It¡¯s easily installed for small diameter valves, and can also be used for emergencies when spare packings are not available. It can handle hot water, high temperature and pressure steam, heat transfer fluid, hydrogen gas, ammonia, organic solvents and so on. Temperature: -240~500¡ãC under oxidizing environment -240~3500¡ãC under non-oxidizing environment PH Range: 0 - 14تازه ها و رویدادها
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قیمت نفت باز هم در چاله دلار افتاد
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رئیس ستاد اجرایی فرمان امام (ره): حضور شرکتهای خارجی در ایران نگرانی ندارد
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ریاضت اقتصادی نوشداروی آلام عربستان است
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Iran’s oil exports hit pre-sanctions high
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چرخش ١٨٠ درجه ای عربستان در قبال قیمت نفت
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Iran says will not join deal to freeze oil output