BDS, build your dreams! As a professional supplier for hardware and tools founded in 1977, we specialize in various types of caulking gun including simple hand type, pneumatic type and rechargable type. Having received ISO9001 certification for our management systems, we have already filled orders for clients in 100 countries around the world. With our own modernized factories, as well as cooperative suppliers, we can provide high quality products for all buyers; delivered on-time, with perfect service.Taking Credit first, service utmostas our operating principle, we warmly welcome inquiries from clients around the world.