I developed the design and production of the tubing, casing thread protectors casing thread protectors, products specially formulated polyethylene as raw silk thread protectors guard, and steel frame composite, with excellent impact resistance, pull-out resistance , dimensional stability, low temperature resistance, the performance standards are in line with API 5CT, I produced the tubing thread protectors into plastic composite and pure plastic thread protectors type of construction, in the form of casing protection structure the plastic composite, plastic composite structure mainly for export, pure plastic structure is mainly used for domestic, I thread protectors complete specifications, beautiful appearance, excellent performance, products have been widely sold at home and abroad, widely praised by users. No. Product Name Specification color Note 1 thread protectors 2-7 / 8 "EUE black plastic thread protectors 2 3-1 / 2" EUE 3 black plastic thread protectors 2-3 / 8 "EUE orange steel skeleton 4 thread protectors 2-7 / 8 "EUE orange steel skeleton 5 thread protectors 3-1 / 2" EUE orange steel skeleton 6 thread protectors 2-3 / 8 "NUE Flat black plastic thread protectors 7 2 -7/8 "NUE Flat black plastic thread protectors 8 3-1 / 2" NUE Flat black plastic thread protectors, casing thread protectors, is Tong Machinery (high-merchant) by the Ningjin positive Tong Machinery Plastics Limited. Ning County is Tong Machinery Plastic Co., Ltd. (www.dzztjx.com) is specialized in "Fuk Loi wheel, omni-directional wheel, universal ball, wheel and other two-way," the enterprise, the company adhering to the "honesty, hard service" concept To provide you with the highest quality products and services. Welcome to inquire! Contact: song manager.