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square head bolts factory Ningbo Zhenhai HuaLong Fasteners Co.,Ltd Was Founded from Year of 2005, Specialized in Manufacturing Various High Strength Fasteners , Standard Pars and Special Items Per Clients , After Years of Development , Our Company now Covers an Area of 5,000 Square Meters with our Plant of 4,000 Square Meters. Our Corporation Has Abundant Production Equipment and Devices, As well as Comprehensive Testing Facilities, Our Major Equipment Includes : 1 Set of Continuous Heat Treatment Furnaces , Over 10 Sets of Forming Equipments. Our Testing Equipment includes 100-ton Tensile Machines , Hardness Testers , Impact Machines , Magnetic Detectors And Spectormeters , The Production Capacity of our company is Over 5,000 Tons Per Year Mainly Products of our Company Are : Heavy Hex Bolts . Hex Head Bolts and Square Bolts T Type Bolts , and other special Bolts also The Studs and Rods , The Nuts and Washers with Specifications and Diameter from M5 to M100 , Class 8.8 10.9 and 12.9 ; Materials are : Medium Carbon Alloy Steel as 35#銆?5#锛?0Cr,35VB,20MnTiB,35CrMoA,42CrMo锛?0CrNiMo etc. All of our Products Are Widely used in the Industries of Constructions, Bridges , Highway , Railway , Towers , Wind Power and Oil Chemicals , and Sold in More Than 20 Domestic Provinces or Cities . Also exported to World Wide like South America, Unites States, Korea , Middle East , and Europe . Our Products are Welcome and Well Accepted by our Customers As the ISO 9001 Certified Manufacturer , We Takes the Quality and Sincerity to Clients as Our Priority , It is our Hornor that Customers From all Over the World come to Visit and We will Show our Capacity Base on High Quality Products and Best Services. square head bolts factory website:http://www.hualongfasteners.com/ website2:http://www.cnhualong.net/