MEIZHOU is one of the most professional sports women's long sleeves manufacturers and suppliers in China, featured by quality products and low price. If you're going to wholesale discount sports
... Read more
Zhangjiagang Pre-eminent International Trade Co., Ltd: We're well-known as one of the leading pet toy, pet bowl, pet leash, pet collar, pet bed manufacturers and suppliers in China. Please feel free
... Read more
Shandong Zhengneng Auto Test Equipment Co.,Ltd: Find professional dynamic wheel alignment, brake tester, speedometer tester, vehicle drying room manufacturers and suppliers in China here! Please rest
... Read more
Vitamin K2, also known as menaquinone, is an important class of fat-soluble vitamins and one of the indispensable and important vitamins in the human body. Because of its very small content in food, it is known as "platinum vitamin". According to different side chains, vitamin K2 can be divided into 14 types. Currently commercialized vitamin K2 is MK-4 and MK-7. Commercial vitamin K2 with good functionality usually refers to MK7. MK7 has two structures of trans and cis. , where the trans structure is functional and the cis structure is not.It has the function of promoting bone health and preventing vascular calcification