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1989
was accredited by Thai Industrial Standard (TIS) for leaf spring
was accredited by Thai Industrial Standard (TIS) for leaf spring
2000
was accredited by ISO 9001: 1994 from U.L Institute, USA for leaf spring
was accredited by ISO 9001: 1994 from U.L Institute, USA for leaf spring
2002
was accredited by Thai Industrial Standard (TIS) for agricultural small disc
was accredited by Thai Industrial Standard (TIS) for agricultural small disc
2004
was accredited by ISO / TS 16949:2002 from U.L, USA for leaf spring and was accredited Thai Industrial Standard (TIS) for agricultural large disc
was accredited by ISO / TS 16949:2002 from U.L, USA for leaf spring and was accredited Thai Industrial Standard (TIS) for agricultural large disc
2005
was accredited ISO 9001:2000 from U.L, USA for leaf spring and was accredited Thai Labour Standard Certification in basis level from Department of Labour Protection and Welfare
was accredited ISO 9001:2000 from U.L, USA for leaf spring and was accredited Thai Labour Standard Certification in basis level from Department of Labour Protection and Welfare
2012
was accredited ISO 9001:2008 from United Registrar of Systems (Thailand) Co., Ltd. (URS)
was accredited ISO 9001:2008 from United Registrar of Systems (Thailand) Co., Ltd. (URS)
