Laizhou Tianjia Hardware Co.,Ltd (TANJA for short)is committed to the research, manufacture and selling of the industy hardwares.The main products include metal toggle latch , industrial hinge, machinery door handle, machinery operation accessories.Our cooperators include CIMC,BBE,SANY,CNHTC,SNPTC,CNIGC,CRRC,FOTON, and so on.