TANJA INDUSTRIAL(SHANDONG)CO.,LTD is a professional enterprise manufacturing hasp, box buckle, hinge, machinery handle lock and other hardware fittings. With advanced automatic production equipment, high-precision detecting instruments, manufacturing shops of molding and stamping, professional technicians, skilled operators and well-qualified service team, our company always improves the entire process including product design, mold making, product molding, punching, surface treatment and assembling.