气门嘴气门芯制造销售，钴盐等化工品销售，轮胎修补工具的销售，模具销售，致力于生产的产品让每个客户满意，拥有专业的生产线和成熟的工艺技术We are engaged in the manufacturing and sales of valve stems and valve cores, the sales of chemical products such as cobalt salts, the sales of tire repair tools, and the sales of molds. We are committed to ensuring that every customer is satisfied with our products and possess professional production lines and mature technological processes