The shanghai rainfall industries development company ltd., formerly the shanghai rainfall inflators company ltd., which has 5,000 square metres of land, is a conglomerate of large-scale tent-maker complexes that develop design, produce tailor-made, and sell the same services. Over 12 years of production and development, the company is a professional tenter with hundreds of employees from the ministry of research and development, the ministry of production, the ministry of markets, the ministry of engineering and the ministry of warehousing。