High-quality, full range, affordable oil casing thread protectors | Features and Benefits plastic (QS) oil casing thread protectors Swiss nameplate thread protectors: the surface is smooth, no cracks, no dents, seismic, not thread would cause corrosion, which is not falling after installation, high security, will not damage the threads of the threaded end and coupling end strength, deformation, corrosion thread, geometry consistency, in full compliance with SY / T5991-94 industry standards . Smooth surface thread no broken buckle, no impurities, thread protectors, not fall, not with steel thread adhesive, thread protectors Protectors for -46 degrees to 66 degrees storage conditions than one year. I produced the tubing thread protectors into plastic composite and pure plastic type of construction, casing thread protectors, protector structure to form casing plastic composite, plastic composite structure mainly for export, pure plastic structure mainly used in China, our company thread protectors complete specifications, beautiful appearance, excellent performance, products have been widely sold at home and abroad, widely praised by users. Thread protectors _ thread protectors protective cap _ positive Tong Machinery (quality businessmen) are provided by Ning County is Tong Machinery Plastic 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.