Welcome to visit our company! Our company Qingdao Sinostro Technology Co., Ltd (Qingdao Histro Steel Tower Co., Ltd) mainly produce all kinds of steel structure, including all kinds of building steel structure, car parking steel structure and warehouse steel structure.

Our company is situated in Beiguan Industrial Park in Jiaozhou, Qingdao,  with the area of 120,000 square meters and the staff of more than 800, including 116 middle and superior technical professors. Our company is a comprehensive tower enterprise, always committed to the development and application of steel technology, specializing in the design, production and initialization of steel structure.

Our business has spreaded more than 30 districts in China and other countries including Thailand, Chile, Span, Pakistan, Myanmar, Sri Lanka, Liberia, Tanzania, Australia, Luxembourg, Norway, Russia, etc. The following is our products photos installed abroad.

Please check the following our internal process:

Material Test:

1. All of our material are purchased from famous mill factory to assure the quality

2. A mill certificate issued by the mill factory with stamp and signature must be provided before unload the material in our factory ,otherwise we have our reason to refuse the material.

3. Before put into production ,all the material must pass the chemical and physical analysis to make sure that they have meet the requested strength and components.

As an BV, ISO, SGS approved supplier in China, we have more than 15 years produce and export steel structure, and we can assure the products we offered is of sound quality which made from qualified material with our professional workers and advance equipment.

Trial Assembly:

To make sure no parts are missing, the steel structure will be done with trial assembly before galvanizing:

Galvanizing:

We use hot dip galvanization treatment to protect the tower. The towers with zinc layer coating are more difficult to be damaged. There is a strong resistance to corrosion.

Packing frame shall be used to bundle the steel structure to avoid damage to the galvanization, and each bundle has a label showing the packing list. 

If you are interested in our steel structure, please don't hesitate to contact with us. Hoping we can be your fabricator.