... parameterroof load0.5KN/sqm(If the criteria were exceeded, it can also load by reinforcing the structure)wind pressure load ... after receipt of you full payment. Our Service:we can provide the service of installayion supervisin and training by extra. ... No. 55, Lane 9055, Tingwei Rd.,Tinglin Town, Jinshan Dist., Shanghai, ChinaZip: 201505Tel: 86-21-57237028Fax: 86-21-57236598Mobile Phones:: + ...