Welcome to visit our company! Power Transmission Tower is one of our main products, including the angle steel towers, tubular steel towers and monopole towers, the voltage can reach 1000KV.

Qingdao Sinostro Technology Co., Ltd (Qingdao Histro Steel Tower Co., Ltd) is located in Beiguan Industrial Zone in Qingdao, Jiaozhou with the area of 120,000 square meters and the total assets of 350 million yuan and the staff of more than 480, including 49 middle and superior technical professors. Histro, a comprehensive tower enterprise, always committed to the development and application of steel technology, specializing in the design, production and initialization of structural mast and steel structure.

Possessing modern CNC machining line, advance inspection equipment and perfect quality management system, Sinostro forms the productive capacity of 100,000 tons of tower and steel structure. Previous planning, construction observation and produce acceptance are all conformed to international standards. Sinostro produces various steel tower, communication tower, broadcasting television tower and electrical tower with professional skill and exquisite technique. The product has widely applied in telecommunication, mobile, railway, electricity, transformation and broadcasting.

Our business spread more than 30 districts in China and Abroad includingThailand, Chile, Span, Pakistan, Myanmar, Sri Lanka, Liberia, Australia, Luxembourg, Norway and Tanzania.

And we have got ISO14001, ISO9001, OHSAS certificates and CE certificate.

The attached is some of our photos:

1. Loading test of 1000KV electric transmission tower:

2.Our internal process:

3. Our finished Transmission Tower: 

4. Our Packing:

5. Loading containers: