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  2. Recycling codes - Wikipedia

    en.wikipedia.org/wiki/Recycling_codes

    Recycling codes on products. Recycling codes are used to identify the materials out of which the item is made, to facilitate easier recycling process.The presence on an item of a recycling code, a chasing arrows logo, or a resin code, is not an automatic indicator that a material is recyclable; it is an explanation of what the item is made of.

  3. Public holidays in Indonesia - Wikipedia

    en.wikipedia.org/wiki/Public_holidays_in_Indonesia

    Hari Pers Nasional (HPN) / Hari Ulang Tahun Persatuan Wartawan Indonesia: 1985: The 1946 founding of the Indonesian Journalists Association (PWI) [3] 21 February: National Waste Awareness Day: Hari Peduli Sampah Nasional: 2006: In remembrance of the 2005 Leuwigajah landslide which killed 143 people. [4] 1 March: State Sovereignty Enforcement Day

  4. PET bottle recycling - Wikipedia

    en.wikipedia.org/wiki/PET_bottle_recycling

    [(CO)C 6 H 4 (CO 2 CH 2 CH 2 O)] n + 2n MOH → n C 6 H 4 (CO 2 M) 2 + n HOCH 2 CH 2 OH C 6 H 4 (CO 2 M) 2 + 2HCl → C 6 H 4 (CO 2 H) 2 + 2MCl. This method is particularly tolerant of contamination. [19] The use of NaOH as a base is preferred and the addition of ethanol to the medium speeds up the process. Many catalysts have been evaluated in ...

  5. Plastic bottle - Wikipedia

    en.wikipedia.org/wiki/Plastic_bottle

    [2] [3] Plastic was invented in the nineteenth century and was originally used to replace common materials such as ivory, rubber, and shellac. [4] Plastic bottles were first used commercially in 1947, but remained relatively expensive until the early 1950s when high-density polyethylene was introduced. [5]

  6. Malang - Wikipedia

    en.wikipedia.org/wiki/Malang

    It is the second most populous city in the province, with a population of 820,043 at the 2010 Census [5] and 843,810 at the 2020 Census; [6] the official estimate as of mid-2023 was 847,182 (comprising 421,340 males and 425,842 females). [2] The Malang Metropolitan area (Greater Malang) was home to 3,663,691 inhabitants in 2010, spread across ...

  7. Sukun, Malang - Wikipedia

    en.wikipedia.org/wiki/Sukun,_Malang

    Climate data for Sukun, Malang (elevation 445 m or 1,460 ft) Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Mean daily maximum °C (°F) 28.5 (83.3) 28.5 (83.3)

  8. Public holidays in China - Wikipedia

    en.wikipedia.org/wiki/Public_holidays_in_China

    2 days in Ningxia; 1 day in Xinjiang: 10 Dhu al-Hijjah of Islamic calendar: Eid al-Adha: 古尔邦节: Gǔ'ěrbāng jié: Hui, Uyghur and other Muslims: 2 days in Ningxia; 3 days in Xinjiang 3rd day of the 3rd Lunisolar month: Sam Nyied Sam: Sam Nyied Sam: 三月三: Sān Yuè Sān: Zhuang: 3 days in Guangxi

  9. Lawang, Malang - Wikipedia

    en.wikipedia.org/wiki/Lawang,_Malang

    Lawang is a district and town in Malang Regency, East Java and is geographically located in the mountains and surrounded by Mount Arjuno and Mount Semeru.It covers an area of 68.23 km 2 and had a population of 103,402 at the 2010 Census and 110,981 at the 2020 Census; [3] the official estimate as at mid 2023 was 112,540. [2]