On January 24, 2013, China Railway Railway Product Certification Center issued a total of 18 specifications of railway products certification for JY470-16/8.
According to the regulations of the Ministry of Railways and the National Certification and Accreditation Administration, the products related to railway transportation will gradually change from administrative licensing and acceptance to more standardized product certification management. In the future, railway products procurement will be the first choice for products that have passed CRCC certification. The company's products are classified into five categories: traction ventilators and motors, cooling towers and fans, cooling fans and motors, generator ventilators and motors, brake resistor cooling fans and motors. In October 2012, the company began the certification application and factory inspection preparation work. It passed the document review, factory inspection, and expert group review of the certification center. 18 of the 23 specifications were in compliance with the requirements of the certification rules. The certification certificate has laid a good foundation for the company's railway motor products to participate in market competition.
Humic Acid is extracted from leonardite,used for soil improvement,it's not soluble,generally it's made in powder or granule form.
Leonardite is a kind of natural organic macromolecule polymer,widely existed in China,but different origin place,different quality,leonardite in Xinjiang is in the best quality,C.E.C 400-450meq/100g,humic acid content 70%min,organic matter 85%min.
Humic Acid
Humic Acid,Humic Acid Powder,Nitro Humic Acid,Humic Acid Granule
Shandong Chuangxin Humic Acid Technology Co.,Ltd , http://www.humicacidcorp.com