The company is located in Tianjin, China, close to the trading port,
with convenient export transportation. A professional team with ten years of foreign trade and export experience is looking forward to working with you.



Tianjin Minjie steel Co.,Ltd was established in 1998. Our factory more than 70000 square meters,just 40 kilometers from XinGang port,which is the biggest port in the north of China .
We are a professional manufacturer and exporter for steel products.The main products are pre galvanized steel pipe,hot dip galvanized pipe ,welded steel pipe ,square&rectangular tube and scaffolding products.We applied for and received 3 patents.They are groove pipe ,shoulder pipe and victaulic pipe .Our manufacturing equipment include 4 pre-galvanized product lines,8ERW steel pipe product lines,3 hot-dipped galvanized process lines.According to standard of GB,ASTM,DIN,JIS.The products are under the ISO9001 quality certification.



  • Safety technical requirements for demolition of portal scaffold

    After the construction of the project is completed, the scaffold can be removed only after it is checked and verified by the person in charge of the unit project and confirmed that the scaffold is no longer needed. A scheme shall be made for dismantling the scaffold, which can be carried out only...

  • Portal scaffold system

      (1) Erection of scaffold 1) The erection sequence of portal scaffold is as follows: Foundation preparation → placing base plate → placing base → erecting two single portal frames → installing cross bar → installing scaffold board → repeatedly installing portal frame, cross bar and scaffold...

  • Portal scaffold

      The portal scaffold is a standardized steel pipe scaffold composed of portal frame, cross support, connecting rod, buckle scaffold board or horizontal frame, lock arm, etc., and then equipped with horizontal reinforcing rod, cross bracing, sweeping rod, sealing rod, bracket and base, and c...

  • Development history of portal scaffold

    Portal scaffold is one of the most widely used scaffolds in construction. Because the main frame is in the shape of “door”, it is called portal or portal scaffold, also known as Eagle frame or gantry. This kind of scaffold is mainly composed of main frame, cross frame, cross diagonal ...

  • Application of connector

    Mechanical connectors are used to connect soft or hard pipes. The stainless steel reinforcement connector structure is composed of two reinforcement screw heads with the same specification and right-hand thread and a connecting sleeve with right-hand internal thread. One of the two rebars is a st...