Tianjin Erjian Construction Engineering Co., Ltd., established on 1980-12-22, The scope of business includes general contracting of housing construction projects,General Contracting of Municipal Public Works Construction,Mechanical and electrical installation engineering construction general contracting,architectural design,Steel structure fabrication and installation,Building decoration decoration construction,Prestressed engineering construction,Production and sales of ready-mixed commercial concrete,Concrete additive manufacturing and sales,Sales of building materials;Import and export of goods and technology(Except as otherwise provided by laws and administrative regulations);Construction Equipment Maintenance,lease,Sales;Steel structure engineering professional contracting;Professional contracting of building decoration and decoration engineering;Professional contracting of foundation and foundation engineering;Landscaping project;Municipal Greening Project;Electronic and intelligent engineering professional contracting;City and road lighting engineering professional contracting;Professional contracting of building curtain wall engineering;Professional contracting of fire protection facilities engineering;Environmental engineering professional contracting;Special engineering professional contracting;Professional contracting of waterproof, anti-corrosion and thermal insulation engineering;Lifting equipment installation professional contracting;Professional contracting of formwork and scaffolding;Ancient architectural engineering professional contracting;Labor service;property management;General cargo;Realtor(If the above business scope involves industry licensing, the license certificate,Operate within the validity period,If the country has special franchise regulations, it shall be handled in accordance with the regulations)(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)