Hongkong DDQ Applied Materials Co., Limited are a professional supplier of Titanium and other advanced metal materials and spare parts.The advanced materials of fasteners mainly includes Titanium(whole series), Zirconium, Molybdenum , Tantalum, Monel (400, 500), Inconel(600, 601, 602CA, 625, 718, 713C), Nimonic(263, 80A, 90) , etc. (1) Washer/screw : We can supplies all types of metallic gaskets and Screws according to various standards for Rectors, Exchangers, Towers, Pressure Vessels, Vavles, Pipe/Tube lines, Pumps, Compressors, Boilers and other Equipment. (2) Industrial Screws(Products system ) Pan Head Slotted Screws, Hexagon Head Screws, Cheese Head Slotted Screws, Countersunk Head Slotted Screws, Countersunk Raised Head Slotted Screws, Pan Phillipse Hea..