steel tube thread protector(ISO9001-2000)

Our company specializes in producing thread protector for petroleum steel pipe and and our products have passed the ISO9001-2000 quality certification system. Our company own advanced equipment, 10 numerically controlled lathe, 10 fully Automatic Injection Molding machine, 5 four-column Hydraulic Pressure machine of 100 tons, 8 Punching Machine and 10 welding machines. The output annual will reach 1million to 1 million and 500 thousand sets. Our existing employee is more than 100 people, including many talented experts and we can design and manufacture the moulds according to the customers’ request There have been quick developing since our company founded, now we have become one of the leading thread protector of petroleum manufacturer in China and become the appointed supplier for many big scale petroleum tubular companies. Specification: OD for TubularsSizes & ThreadType60.33mm2 3/8″NUcomposite & all plastic2 3/8″EUcomposite & all plastic73.03mm2 7/8″NUcomposite & all plastic2 7/8″EUcomposite & all plastic88.9mm3 1/2″NUcomposite & all plastic3 1/2″EUcomposite & all plastic114.1mm4 1/2″NUcomposite & all plastic4 1/2″EUcomposite & all plastic4 1/2″STCcomposite & all plastic4 1/2″LTCcomposite & all plastic4 1/2″BTCcomposite & all plastic127mm5 ″LTCcomposite & all plastic5 ″BTCcomposite & all plastic139.7mm5 1/2″STCcomposite & all plastic5 1/2″LTCcomposite & all plastic5 1/2″BTCcomposite & all plastic168.3mm6 5/8″BTCcomposite & all plastic177.8mm7″STCcomposite & all plastic7″LTCcomposite & all plastic7 ″BTCcomposite & all plastic193.7mm7 5/8″LTCcomposite & all plastic7 5/8″BTCcomposite & all plastic219.1mm8 5/8″STCcomposite & all plastic8 5/8″LTCcomposite & all plastic8 5/8″BTCcomposite & all plastic244.5mm9 5/8″STCcomposite & all plastic9 5/8″LTCcomposite & all plastic9 5/8″BTCcomposite & all plastic273.1mm10 3/4″STCcomposite10 3/4″BTCcomposite339.7mm13 3/8″STCcomposite13 3/8″BTCcomposite508mm20 ″STCcomposite20 ″BTCcompositedrill stemNC26 (2 3/8″IF)compositeNC31 (2 7/8″IF)compositeNC38 (3 1/2″IF)compositeNC46 (4″IF)compositeNC50 (4 1/2″IF)composite5 1/2″FHcomposite