Laizhou Heng Ji General Machinery Manufacturing Co.,Ltd is the small and medium-sized brake discs,brake drum manufacturer in the brake disc export base Laizhou City,Shandong Province,China.Our company has been engaging in the scientific research,production,sales of brake discs since 2003.The product sales are powerfully guaranteed by well-equipped testing equipment,strong technical force,complete quality assurance system and excellent after-sales srevice.For nine years,our company has been ...