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龍口Hongchang金属製品有限公司が開発輸送と地理的位置と、北に大連から海を横切って、南に龍口、煙台、青島の東に位置しています。

hongchangが、様々な鋼格子、トレンチカバー、ペダル、溶融亜鉛めっき鋼格子、特殊な形鋼格子の生産に特化し、etc.Our製品は全国各地に販売され、ヨーロッパ、アメリカに輸出され、アフリカ、東南アジア、格子の他の国とregions.With安定した品質と高品質のサービスを、当社の製品はよく自宅での顧客によって受信され、abroad.Our鋼が広く石油、化学工業、火力発電所、下水処理、自治体の橋、食品に使用されています養殖や他の産業。

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  • How do high-credit manufacturers ensure the quality of steel gratings?
    When the user chooses the steel grille, in addition to reviewing their production strength, they also need to criticize the manufacturer’s reputation, because only high-reputation manufacturers can better guarantee the quality of the product. So how do high-credit manufacturers guarantee p...
  • If the Grating Plate Is Used Improperly, It Will Reduce Its Service Life.
    After the hot-dip galvanized grating plate is produced, it is subjected to anti-rust treatment. There are 2 kinds of hot-dip galvanizing and electro-galvanizing. The hot-dip galvanized steel grating plant uses a surface treatment for the production of steel gratings. The galvanized steel grating...
  • Does The Steel Grating Need to Meet The User’s Requirements for Use?
    In the production process of steel grating, it is necessary to use a variety of technologies, only if it has a certain improvement in technology, will it really have the high quality of the product, then what kind of high technology does this product need? The first is that there is a need for h...
  • The Surface Treatment of the Steel Grating Also Satisfies Many Aspects of Functionality.
    When users use steel gratings, they often find that there is a layer of treatment on the surface, but the use of the field and different manufacturers will make this treatment very different, because of its sexual functionality. There is a certain difference in the performance, then what kind of...