Jangin Industrial Diamond Co.(GDI Co.) has been one of diamond tool manufacturers for the professional markets, especially specialized in diamond core drill bit & segment. diamond Saw blade, diamond Wire saw, since established in 1974, KOREA, as owner of Dimple patent in Japan, UK, Germany, China, USA, Australia etc.Jangin Diamond representative products are Dimple/Dimple-X/Crown core drill bit & segments, CATE Saw blade, which were developed in 2007 and we applied for the patent in 15 countries, winning high praise from our customers about the brilliant performance all over the world. We have produced and exported our products to 45 customers in 40 countries like UK, USA, Japan, Australia, Germany, Holland, Saudi, Qatar, Spain, Russia, Singapore etc.Our best main products are as follows:*Dimple Core drill bit & segment WET for Heavy Reinforced concrete*Dimple-X Core drill bit & segment WET for Heavy Reinforced concrete*Dimple-X Core drill bit & segment DRY for Concrete*Turbo-RL Core drill bit & Laserweld segment WET for Heavy Reinforced concrete*Crown(Ring Type) Core drill bit & Laserweld segment WET for Reinforced concrete*Dimple/Roof-Top Core drill bit & segment for Thinwall*Dimple-V Core drill bit for Hard Granite stone*CATE(Arix type) Saw blade & segment for Concrete/Asphalt/Wall*Wave Saw blade & segment for Concrete/Asphalt/Wall*Wave Ringsaw blade for ConcreteI am sure that we, Jangin is one of the best professional diamond tool manufacturers with both the excellent drilling/cutting speed and longer life. Best of best in product quality especially for even heavy reinforced concrete.You can see why many oversea customers have chosen our products, even though our offer price is higher, if you test ours in your work field.Please do not hesitate to contact me if you need more detailed information of Jangin Diamond Products.Thanks a lotERNEST CHOSALES DIRECTORJANGIN INDUSTRIAL DIAMOND CO.