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Pembekal filem tingkap Harvids menumpukan pada pelbagai jenis pembuatan filem tingkap tersuai sejak 2005.

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What do VLT, UVR, and IRR represent in terms of product parameters?

VLT=light transmittance, UVR=ultraviolet rejection rate, IRR=infrared rejection rate. To put it simply, the primary focus should be on maximizing the values of the two dash lines, which are UVR and IRR, while Visible Light Transmittance can be adjusted according to individual preferences.

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