北京清心益人科技有限公司坐落于风景秀丽的北京市密云县，是集研发与生产一体的专业高新技术厂家。企业专业进行耐磨耐蚀耐高温陶瓷材料的研发生产，研发生产的其中一种产品纳米陶瓷柱塞头、压室采用新工艺新技术，通过纳米陶瓷化处理，在柱塞头外表面、压室内表面显露高性能的耐磨层，改善摩擦润滑机理，增强耐磨性能，进而大大地提高了柱塞头、压室使用寿命。Established in 2007, Beijing QingXinYiRen Science Technology Co.,Ltd. is plunger/the plunger cylinder professional manufacturer.Located in Beijing China, we are developing applying the Aerospace new tech to the die-casting & foundry industry. Ceramic Plunger/Sl is the fruit.