Puyang Zhongshi Group Co., Ltd. is a member of Sinopec Corporation. As a national high-tech enterprise and scientific enterprise, we launch business in areas of oilfield industry and trade.Our products have attained ISO9000 quality system certification. Some petroleum product machinery have passed the evaluation of API certification. Our products are exported to the America, Russia, Europe, Middle East, Central Asia, Africa and other overseas markets. We have registered in the Republic of the Sudan to set up a company.Our group is located in Puyang City of Henan Province with beautiful landscape and convenient transportation. Puyang City has been granted titles of "China National Cultural City".We persist in the policy of "technology is the guide and quality is our life". We believe that quality determines sustentation. We will provide customers with reliable and adaptable products and services on the basis of equality, mutual benefits and sincerity. We sincerely hope to develop friendly cooperation with both domestic and overseas colleagues, to create a prospect future together.We have been exporting for decades and with rich manufacturing and exporting experience.More and more customers from various countries come to us and most of them become our good friends and place more orders.Our API 5CT /API 11AX / API 11E are helpful for our businesses , and we are keeping improving our research and development ability and new products with advanced concept are available now, we are one professional company for cementing accessories, welcome to visit our websites as follows:1. www.zs-oilfieldequip.com2. www.chinajixie.com3. www.casingcentralizer.com4. www.zs-oilfieldequip.ru