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This article introduces four common surface treatments for bolts: coating, hot-dip galvanizing, electroplating, and Dacro. These methods can improve the corrosion resistance and appearance of bolts. Coating and electroplating can make the surface of the bolt smoother and more beautiful, but they are not durable and are easily scratched; hot-dip galvanizing and Dacro can enhance the anti-corrosion ability, but the surface is not beautiful enough. Now there is a hexavalent chromium-free formula for Dacro, ki se plis zanmitay anviwònman an. This article briefly introduces the advantages and disadvantages of each treatment method, as well as their importance.

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Yon graf ki montre pri a nan bride asye nan Yuan Chinwa.

Analiz de pri Steel 2021

Pandan 75yèm Asanble Jeneral Nasyonzini an nan 2020, Lachin pwopoze ke "emisyon gaz kabonik ta dwe pi wo nan 2030 epi reyalize netralizasyon kabòn pa 2060".

Kounye a, objektif sa a te fòmèlman antre nan planifikasyon administratif gouvènman Chinwa a, tou de nan reyinyon piblik yo ak politik gouvènman lokal yo.

Dapre teknoloji pwodiksyon aktyèl Lachin nan, kontwòl emisyon kabòn nan kout tèm ka sèlman diminye pwodiksyon asye. Se poutèt sa, soti nan previzyon an macro, pwodiksyon asye nan lavni ap redwi.

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Yon gwoup moun ki chita nan yon sal konferans, diskite sou konsepsyon ak espesifikasyon yon bride Customized.

JMET CORP kenbe la 2022 rezime anyèl ak konferans felisitasyon

Nan apremidi 16 janvye, JMET te kenbe li 2022 rezime ak konferans felisitasyon nan sal konferans nan 2yèm etaj Building G nan Sainty International Group. Gao chante, manadjè jeneral Sainty International Group, te patisipe nan reyinyon an epi li te fè yon diskou, ak Zhou An, vis manadjè jeneral Sainty International Group ak prezidan konpayi an, prezante rapò travay la pou 2022. Konferans lan felisite kolektif avanse yo ak moun nan 2022.

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Aplikasyon ak Diferans nan Hot Forge ak Fwad Heading Pwosesis nan pwodwi Fastener

This article discusses the application and difference of hot forging and cold heading processes in fastener products. Se frèt tit konplètman mekanize, resulting in a low defect rate, but the strength of products produced is limited to a maximum of 10.9 and requires heat treatment to reach higher strength levels. Cold heading machines have a basic minimum order quantity of 1 tòn. Nan lòt men an, hot forging involves manual labor and can produce products with up to 12.9 fòs. Sepandan, the labor cost is high, and the hot forging process is more expensive than cold heading in mass production. The article concludes that the hot forging process can be used for small inquiry quantities and low appearance requirements.

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Yon graf ki montre pri a nan asye, espesyalman pou HEX BOLT.

RAPÒ ANALIZ PRIX STEEL SOTI DESANM POU FEVRIYE

Demann sou mache a te tonbe, pri yo nan faktè pwodiksyon yo te kontinye ap monte, epi risk stagflasyon ogmante. Anba tankou yon background, pri asye yo pral piti piti kraze ak prim twòp epi tou dousman retounen nan fluctuations pri regilye.

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Yon graf ki montre pri a fluktue nan asye nan Lachin.

RAPÒ ANALIZ PRIX STEEL SOTI JEN A JIYE

Afekte pa anpil faktè, Pri asye Lachin nan te varye anpil ane sa a, ak pri regilye modèl la nan ane anvan yo te pèdi valè referans yo. Se poutèt sa, atik sa a analize chanjman ki fèt nan pri asye soti nan me jiska jiyè 19 soti nan plizyè ang, ak predi pri asye nan pwochen mwa Out rive novanm.

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