Tunalar group has been producing since 1972 in automotive dumper sector and he began to manufacture Steel Security Door in 1998. Tunalar Groups first principle is "quality" since the beginning. So the group company TUNA STEEL DOOR Ltd. Co. Produce the Steel Doors with trade mark TUNA with the principle of "quality and customer satisfaction". TUNA STEEL DOOR Ltd. manufacture in Kayseri Industrial Area, over 10. 000 m2 and 4. 000 m2 closed area with the capacity of 15. 000 pcs per year. TUNA Ltd. want to be leader in Steel Door sector both in domestic market and foreign market. TUNA Ltd. supposed its quality by TSE (Turkish Standard Inst) Quality Certificate and ready for special designs and manufacture according to customer request. Always with you for your security and for you
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