Characters: 1) Good ability to assemble and disassemble for several times without damage. 2) Could be lifted, fixed and combined freely. 3) Fireproof and waterproof. 4) Cost saving and convenient transportation 5) Service life can reach up to 15 - 20 years 6) We can provide the service of installation, supervision and training by extra. 7) Load : 18 sets / 40ft HC.