On October 22nd, Henan Kaijie Water Treatment Co., Ltd.'s quote for activated carbon shell at 6500 yuan per ton is provided. The specifications of the activated carbon shell are: domestic product with an iodine value of 700 and complying with the enterprise standards set by Henan Kaijie Water Treatment Co., Ltd. The validity period for this quote is seven days. The quoting entity is Henan Kaijie Water Treatment Co., Ltd.