Original standard ISO 1388-4-1981 in PDF full version. Additional info + preview on request
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Original standard ISO 1388-5-1981 in PDF full version. Additional info + preview on request
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Original standard ISO 1388-6-1981 in PDF full version. Additional info + preview on request
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Original standard ISO 1388-7-1981 in PDF full version. Additional info + preview on request
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Original standard ISO 1388-8-1981 in PDF full version. Additional info + preview on request
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Original standard ISO 1388-9-1981 in PDF full version. Additional info + preview on request
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