... head is pressing-proof, doesn't deform and crack. The torsion spring of pressing dryer is made of fine steel, can be ... 8,000 square meters. We employ over 300 skilled workers. With vertical integrated manufacture processes, we have tooling, metal stamping, ... . We have been awarded ISO9001:2008 Certification. In accordance with ISO9001 requirements, we impose stringent quality control standards at all ...