On November 23, Henan Kaijie Water Treatment Co., Ltd.'s quote for activated carbon shell is 6000 yuan/ton. The specification of the activated carbon shell: domestic product, iodine value 600, Henan Kaijie Water Treatment Co., Ltd., enterprise standard, 600. The validity period of the quote is 7 days. The quote provider is Henan Kaijie Water Treatment Co., Ltd.