Is the production of caustic soda, cement, polysilicon, PVC, gas phase silica and other products from the famous complete chemical company of Japan. Toyama corporation is a company that has been developing and producing silica gas for many years.Hangzhou Clean PCO Technology Co., Ltd.  On the professional pest control for 17 years, solved the problem of pests for tens of thousands of families, is your trustworthy partnerHangzhou Clean PCO Technology Co., Ltd. founded in 2003, focused on biological control work for 17 years, the specialized company is engaged in the disinfection of air and cockroaches, rats, flies, mosquitoes, termites and other professionals of prevention and pest control of the company's PCO, because it is not difficult to destroy pests "is our mission, the company since its inception sticks to the principle of service service" people-oriented, good faith, word of mouth, sustainable management ", to promote" integrity, efficiency, security, environment protection "insect control concept, to improve and protect the environment, natural environment, for the purpose of people's lives.