... L/C is also acceptable6.Kairui Chemical Co.,Ltd in Hejian,Cangzhou,Hebei,ChinaKaiRui Chemical Co., Ltd. is the top ... of ion exchange resin. As one of Petroleum and Chemical Engineering Research institute and stated high-tech enterprise recognized, we ... is also the provincial level enterprise technology center7.Kairui Chemical Co.,Ltd headquarter,BeijingOffice address:7th floor,overseas property ...