Precision fastening screw Haiya Technology Co., Ltd. is a need to be in front of many customers, adapt to the social environment, and promote economic development and should be shipped industrial establishment of a full range of professional fastener company. The company specializes in high-end fasteners, technological innovation and the development and application of production and manufacturing, supporting conventional fasteners and service areas of special fasteners and fasteners, as well as a global brand and sales agents engaged in fasteners. We will be a new fastening technology, the system of quality products, efficient professional services for the company share the responsibility and the development of basic. To bring customers a new experience, and efficient benefits, to become customers in the fastener areas of greatest need, most wanted partners. We know that customers need to be able to provide the ideal package of fastening solutions partner. Our fundamental belief departure for customers to solve complex, cumbersome fastening solutions. We will be "people-oriented, win-win future" spirit of enterprise, technology-centric, quality-centric basic philosophy to achieve customer satisfaction as the mind, in order to meet customer requirements for power, and strive to achieve closer cooperation and social and customer co win. The company mainly produces stainless steel, duplex stainless steels, martensitic stainless steel, heat resistant steel, chrome vanadium steel, alloy steel, Hastelloy, Monel, inconel material fasteners and mechanical parts. Products include internal and external hex bolts, studs, various nuts, various pins and non-standard fasteners and machined parts, product specifications without restrictions. Mainly used in petrochemical, thermal power nuclear power, pressure vessel, fuel power, metallurgy, mining, shipbuilding locomotives, heavy machinery, fluid conduit, construction, steel walls, food and medicine systems and industrial equipment installation and special equipment manufacturing and other fields. First, the main alloy steel fasteners: 25Cr2Mo1V bolts and nuts, 25Cr2MoVa bolts and nuts, 25Cr2MoV bolts and nuts, 25CrMoV bolts and nuts, 30CrMoV bolts and nuts, 35CrMoV bolts and nuts, 35CrMoV bolts and nuts, 35CrMoVA bolts and nuts, 20Cr1Mo1VNbTiB bolts and nuts, 20Cr1Mo1VTiB bolts and nuts, 40Cr bolts and nuts, 40CrNi bolts and nuts, 40CrNiMo bolts and nuts, 38CrMoAl bolts and nuts, 12Cr1MoV bolts and nuts, 30CrMo bolts and nuts, 30CrMoA bolts and nuts, 1Cr5Mo bolts and nuts, 42CrMoA 40MnB bolts and nuts bolts and nuts, 20MnTiB bolts and nuts. 20CrMnTi bolts and nuts. Second, stainless steel, duplex steel, special stainless steel fasteners: 1Cr17Mn6Ni5N bolts and nuts, 0Cr18Ni9 bolts and nuts, 00Cr19Ni10 (SUS304L) bolts and nuts, 0Cr18Ni10Ti (SUS321) bolts and nuts, 0Cr18Ni11Nb (SUS347) bolts and nuts, 0Cr17Ni4Cu4Nb (SUS630 / 17-4PH ) bolts and nuts, GH2132 bolts and nuts, GH2038 bolts and nuts, GH2135 bolts and nuts, GH3039 bolts and nuts, GH4033 bolts and nuts, duplex steel 1.4410,1.4460,1.4462,1.4501,1.4507, S31803,2205,2507,2520 bolts and nuts, desulfurization nitrate alloy DIN1.4529 (20Cr25Ni6Mo1Cu0.2N / ASTM A240 / UNS N08926) bolts and nuts, 904L (DIN1.4539 / 20Cr24Ni4.3Mo1.5Cu / UNS N08904) bolts and nuts, Hastelloy C4, C276 bolts and nuts, 0Cr17Ni12Mo2 bolts and nuts, 00Cr17Ni14Mo2 bolt Nuts, X2CrNiMo18-14-3 bolts and nuts, X5CrNiMo17-12-2 bolts and nuts 27CND17-12-2 bolts and nuts, X12CrNIS18-9 bolts and nuts, Z10CNF18-09 bolts and nuts, 08KH17H13M2T bolts and nuts, 08KH18H10 bolts and nuts, 03KH17H14M2 bolts and nuts, 0Gr25Ni20 bolts and nuts, 20Cr25Ni6Mo1Cu bolts and nuts, 1Cr18Ni9Ti bolts and nuts, Cr25Ni20 bolts and nuts, 0Cr18Ni12Mo2Ti bolts and nuts, 00Cr17Ni13Mo2N bolts and nuts, 00Cr20Ni25Mo4.5Cu bolts and nuts, Ni-Mo-Ti alloy bolts and nuts, MoNeL alloy bolts and nuts, Ni, Ti, IncolloY800 bolts and nuts , IncolloY800H bolts and nuts, InCoNeL601 bolts and nuts, 0Cr13 bolts and nuts, 1Cr13 bolts and nuts, 2Cr13 bolts and nuts, 3Cr13 bolts and nuts, 1Cr17Ni2 bolts and nuts, C1-70 bolts and nuts, C1-110 bolts and nuts, C3-80 nuts and bolts and other fasteners .