Derock Linear Actuator Technology Co., Ltd. Phone/WhatsApp: +8613827493895 / +8613590450411 E-mail: yvette@szderock.com / sales04@szderock.com Address: Block 86D, 86E, the 5th Industrial Area, Mashantou, Matian Street, Guangming District, Shenzhen, China. National Sales Representive Shen Jie: 13827491158 Huang Qun: 13728602035 Shen Jie: sales03@szderock.com Huang Qun: sales01@szderock.com Overseas Sales Representive Yvette: 13827493895 Army: 17796319916 Yvette: yvette@szderock.com Army: sales04@szderock.com