Profile: Puyang Zhongyuan Sanli Industry Co., Ltd. manufactures polymer drilling chemicals and common drilling chemicals. We are an ISO 9002 certified company. Our products are thiourea dioxide, ethyl butyrate, ethyl propionate, sodium perborate, polyacrylamide and diacetyl. Our thiourea dioxide is used in the textile, paper making, leather processing and photographic industries. Our sodium perborate is used in laundry bleaches, dish washing compounds, coffee-stain removers and denture cleaners.