por | Jul 19, 2026
High-concerned chemical. Model Number. Mainland China. With Backlight Or Not.
por | Jul 19, 2026
You can use the paper for cooking, like checking the acidity of coffee or the alkalinity of tea. Match the color changed strip with the pH scale color chart within ~15 seconds. 8 – 11 : alkalinity. 12 – 14 : very high alkalinity.
por | Jul 19, 2026
High-concerned chemical. Model Number. Mainland China. With Backlight Or Not.
