All of tyre must evaluate the production quality are as follows.
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Plunger energy for the press and the rim of tyre.
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Endurance for measuring the duration of work.
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Force variation machine for inspection the force effect the tyre.
The quality tyre and the standard of product package and bring to the warehouse for the distribution to the consumer.
The reward and quarantee of Deestone is the qualification of the company.
Year 1995
B.E. 2538
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Deestone has received Thailand’s Best 100 Product Award.
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Deestone International has received DOT standard from USA.
Year 1997
B.E. 2540
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Deestone has received Mor.Or.Kor. tyre,pickup and van.
Year 1999
B.E. 2542
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Deestone has received certificate of ISO 9001:2015 from TUV NORD.
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Deestone has received E-mark standard for Scooter from Netherland.
Year 2000
B.E. 2543
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Deestone has received Mor.Or.Kor. tyre, van.
Year 2002
B.E. 2545
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Deestone has received certificate of ISO 9001:2015 from TUV NORD.
Year 2003
B.E. 2546
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Deestone International has received certificate of Q.M.S. as ISO 9001:2015.
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Deestone has received E-Mark standard for passenger from Netherland.
Year 2005
B.E. 2548
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Deestone has received E-Mark Standard for commercial from Netherland.
Year 2007
B.E. 2550
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Deestone has received SIRIM from Malaysia.
Year 2008
B.E. 2551
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Deestone has received MS 1394:2008 for Motorcycle, can tyre from Malaysia.
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SVIZZ-ONE CORPORATION LTD has received Mor.Or.Kor, of internal tyre of motorcycle.
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Deestone and Deestone Radial Tyre has received the certificate of Q.M.S. as ISO9001:2015 from TUV NORD.
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Deestone has received E-Mark standard for radial tyre from EU.
Year 2009
B.E. 2552
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Deestone has received Mor.Or.Kor. of truck tyre.
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Deestone and Deerubber has received the certificate of ISO 9001:2015 from TUV NORD.