Our team through qualified training. Skilled professional knowledge, powerful sense of support, to satisfy the support desires of consumers for Tunnel Ventilation, Helix Ventiallaion Hose, Biogas Fermentation Bag, Helix Ventialtion Tube,Flat Plastic Air Duct. At our firm with quality first as our motto, we manufacture products that are entirely made in Japan, from materials procurement to processing. This enables them to be used with confident peace of mind. The product will supply to all over the world, such as Europe, America, Australia,Porto, Paraguay,Philippines, Buenos Aires.We pay high attention to customer service, and cherish every customer. We've maintained a strong reputation in the industry for many years. We are honest and work on building a long-term relationship with our customers.