The legal entity, represented by the zhang hua army, has a general project: manufacture of rubber products; sale of rubber products; manufacture of plastics; sale of plastics; manufacture of metal chains and other metal products; sale of metal chains and other metal products; manufacture of synthetic materials (other than hazardous chemicals); sale of synthetic materials; manufacture of building water protection scrolls; sale of building waterproofing materials; manufacture of building structures; sale of structures; construction of metal structures; sale of metal structures; sale of metal structures; manufacture of sealed fillings; sale of sealed fillings; sale of fireproof materials; sale of fireproof sealing materials; sale of anti-corruption materials; sale of building materials; manufacture of fibreglass enhanced plastics; sale of glass fibre enhanced plastics; lease of construction machinery and equipment; rental of machinery and equipment; rental of specialized equipment; rental of rental services (non-licensed lease services). (ii) licensing of projects (in addition to those subject to legal authorization, the operation of which is carried out on an autonomous basis under a licence): construction work. (a project subject to legal approval may only be carried out with the approval of the relevant department, subject to the approval documents or licences of the relevant department)