Self Supporting telecommunication steel tower:
1. Steels: ASTM A36; ASTM A572
2. Hot-DIP galvanization: ASTM A123
3. Structure: Self-supporting tubular towers,angle steel tower ,Broadcast&TV tower , microwave tower ,roof top tower ,watch out tower ,medium wave tower
4. Connection: Bolted&welded,flange, slip joint
5. Life time: 50 years at least
6. MOQ: 20 tons
7.ISO9001:2008,OHSAS 18001,iso14001
Performance Standard Besides conforms to the drawing and design, the materials and fabrication of tower components shall conform to the following standards (Chinese Standards) and customer's requirements. Steel pipe tower welded requirements 1 )we used CO2 welding and submerged arc auto welding or other methods. 2 )Welded seam shall be full penetration and grinded. 3 )The welded product has no fissure, scar, overlap, layer or other defects. Steel tower Galvanization All steel items ,bolts ,nuts ,washers & other components to be hot -dip galvanized with uniform. As per (ASTM-A-123). Company Hardware Configuration 1. The company has advanced digital physical and chemical laboratory. 2. We have one 2400 tons CNC bending machine, have two domestic advanced digital automatic production line for steel pipe tower, have 6 automatic numerical control robot welding system, have one Steel tube joint welding machine , have 3 CNC plasma flame cutting machine, have 5 High speed CNC Angle steel line and steel plate production line, one CNC tower foot welding robot system. ,2CNC Plane drilling machine,1 sand shot blasting machine, 1 gantry type submerged arc welding machine.6 cutting/shearing machine3. Annual production capacity of 150, 00 tons of hot galvanizing line and one Automatic centrifugal bolt galvanizing line. Management and technical advantages 1.2009 ERP production management system 2. 2014 We are China steel structure association membership.3. 2012-2014,we are provincial star enterprise.4. 2013-2014 we have AAA credit grade ,which awarded by Agricultural bank.5. 2011 We got ISO 9001:2008 standard certificate.6. 2013 we got OHSAS 18001:2007 standard certificate7. 2012We were patent enterprise8. Mar, 2014 we got reputation certificate award by Jiangxi province Supervisory Bureau for Quality and Technology.9. contract & promise keeping enterprise for 5consecutive years awarded by Qingdao business executive management bureau.10.engineering construction & installation enterprise grade IIWhy Choose us? * Tower Design tailor made to your requirements * Pre Dispatch inspection by buyer or international inspection agency. * Steel certified as per international. * Design of Tower as per China/ International design standards. * Galvanization as per international standard. * Timely project completion. * Convenient transportation to Qingdao port & airport(only one hour)* We are manufacturer. We have our own land & factory. The land was bought instead of rent. 
| Height | 5-50M |
| Wind Pressure | 0-300 KM/H |
| Structure | Overlap Connection |
| Material | Q345B/A572, minimum yield strength >=345MPA; Q235B/A36, minimum yield strength>=235MPA |
| Details & Shape | Can be designed as per customer's requirement |
| Good's Description | Cable and Ladder can be assembled by customer's request |
| Lifetime | 5 years |
| Main Pole Lifetime | More than 25 years |
| Barks | Hot Dip Galvanization and Special Tree Gluewater |
| Delivery Time | 28 days after receiving deposit |
| Galvanizing Standard | EN ISO 1461,ASTM/A123 or equivalent |
| Working & Resting Platform Quantity | 1-3 PCS |
| Antenna Support | 3-18 PCS |
| Microwave Dish | 3-18 PCS |
| Manufacturing and Workmanship | BS449 or AISC |
| Welding Standard | BSEN287, BSEN288 or equivalent |
| Nuts& Bolts | Grade 8.8 |
| Spare parts | All Necessary parts, e.g. Antenna Mount pole and Brackets , Climbing Steps, Safety Guide Cable, Lightning Rod, Mounting bracket for Obstruction light, Holding down bolts/nuts, and all other bolt and nuts required for erection and installation |
Qingdao Mingzhu Steel Structure, Co., Ltd., was established in 1993, located in Jiaozhou Bay of Qingdao, which is also a large-scale comprehensive industrial group. Through many years of development, the company now covers an area of over 199, 998 square meters, workshop covers 100, 000 square meters, owns fixed assets of RMB 0.12billion, registration capital of RMB 0.1billion, employs more than 450 staffs, among them, senior engineer 8 people, engineer 36 people, technical personnel 90 people, and has an annual production capacity of 110, 000 tons. Engaging in tower manufacturing for more than 15 years, we have become a professional manufacturer in the design, manufacture and installation of steel tower mast structure, tubular tower &mast, substation framework and other steel structures. Our main products include all kinds of steel towers and similar steel structures widely used in the fields like power transmission, substations, telecommunication, microwave-communication, radio/TV broadcasting, mapping, watching and other fields. In compliance with the customers' requirements, we can provide design, production, installation &EPC or single contracted project services. Our products have been exported to American, UK, Bangladesh, Pakistan, Nigeria and Vietnam etc.
