DH quality commitment: 1, in strict accordance with customer needs and site requirements, provide meet the design standards, quality standards of products. 2, strict inspection and control of raw materials, the original device, component parts into the plant quality. 3, to ensure the perfect process for equipment, detection means complete. Products not manufactured with a defect. 4. I will promptly notify the demand side, quality defects occur during the execution of the contract, do not hide. If the equipment defects exceeds the range specified in the contract, the company responsible for the unconditional replacement. In the process of installation and commissioning, and equipment quality problems arise, deal with the problem first test sieve, then clearly define the responsibilities, all to meet the project schedule needs to be guidelines. 6, equipment manufacturing, transportation, loading and unloading of the company for the insured event of an accident, I will ask for the demand side of the device into the line as soon as possible for a free replacement, repair, until the demand side satisfied. Development of test sieves in the early 1980s, reform and opening up, many enterprises have been developing rapidly test sieves metal braid, many industry products are no uniform standards, abrasives, diamond, coal, quartz, silicon carbide, metal powder and other industry is eager to have their own national industry standards to unify product specifications and models, led by the State Commission of Science 012 bases in Hanzhong, Shaanxi Qin Feng Machinery Factory (173 Factory) produced the first batch of test sieves, because of the planning system test sieve price, Ankang Bashan Machinery Factory (540 Factory) mainly provides screen, 540 plant since 1962 has been manufacturing plant in Kaifeng metal mesh, and later as a screen varieties, co-production process cumbersome, 173 plants on Exit the test sieve production, test sieves 1983 540 factory production has been adopted by many large enterprises, in 1984 by the State Commission of Science, the National Bureau of Standards, Shaanxi Bureau of Standards, Shaanxi Science, Technology, Tangshan Coal Institute test sieve factory, mill three Zhengzhou, Shenyang, a sand, Zhengzhou two sand, Guizhou three sand, Xi'an five sand, Shandong four sand, Guiyang seven sand, Xi'an cable factory, Kaifeng copper mesh factory Anping metal preparation plant network and other 26 departments in Shaanxi Ankang on Bashan Machinery Factory (540 Factory) diameter of 200 test sieve, sieve diameter of 75 electric molding checks were identified; 1985 our country have their own standards, then the standard test sieves and test sieve is separate ( GB6003-85, GB6004-85). But also the birth of our nation's standard metal mesh GB5330-85 "industrial metal wire woven square mesh." Jining test sieves, test sieve price, Han Machinery (certified merchants) are provided by Han Machinery Co., Ltd. Xinxiang City. Xinxiang City Han Machinery Co., Ltd. (www.hnxxdh.com/) is specialized in the "shaker, vibration sieve, linear sieve, drum sieve, sieve dehydration, conveyors, hoists," the enterprise, the company of "honesty, hard service "concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: sinus super.