Dier  group company has a large business scale of various equipment installations which including electromechanical installation,building construction,petrochemical industrial contracting grade-1 qualification, municipal for public use, steel-work, fire fighting facilities,antiseptic incubation,architecture intelligence,electro-mechanical project contract out qualification.The company also has the qualification of grade-1 boiler installation, manbmete tube installation,manbmete volume manufacturing,hoist machine installation,calculating and so on.The company could supply the sevice for large scale industry producing installation and high grade civil used building installation of power,chemical,light industry,pharmaceutical,machinery, metallurgy,petroleum, building material,municipal fields.