产品主要成份Product basis:A钢材Rolled steelB聚乙稀PolyethyleneC塑料色母Pigment of plastic2.产品质量Product Quality:完全符合API行业标准。产品表面光滑螺纹无断扣，无杂质，不滑落，不与钢管螺纹粘接，适用-46度至66度条件下储存一年以上。Completely meets and exceed the standard of API related. The products is smooth, no discontinuous screw thread, no impurity, no slip, and no felting with screw thread of steel tube, and can be applied between –46 and 66 degree centigrade and deposited for more than one yea.产品用途Products usage：该产品是石油专用钢管必须的配套产品，起到保护钢管螺纹的作用。防止在正常装卸适度冲击和运输过程中受损伤。This product is the necessary counterpart of special petrol steel tubing,casing, pipe, aiming to protect the  thread of them, in case of being damnified due to being measurably impacting in transportation and loading and unloading.产品特点Product specialty:产品美观，品种多，规格齐，从2 3/8”至20”油管、套管、管线管、石油钻杆、抽油杆螺纹保护器一应俱全，并且可以根据客户要求生产特殊扣。With pretty appearance, various variety and complete specs from 2 3/8” to 20” petrol tubing,casing, pipe, drill shrank, bushing  thread protector all ready, and manufacture special fastener according to the requirement of customers 点击次数：100970