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. TANJA company of China, has been focusing on the production of industrial hardware for more than 20 years . Company has more than 60 Technical Workers and 6 R&D Engineers now.TANJA established own labs.And more than 50 sets of professional production equipments, TANJA company has the ability to design products/develop molds independently. Can provide 3D drawings of all products . The products are sold all over the world, winning customers's trust. Excellent quality, in the leading position in the industry, welcome to visit the company for guidance.