API 5CT J55 K55 N80 L80 P110 Ltc Btc 5-1/2" Casing Coupling Premium Connection Bl-Bc Flush Joint Patent Casing Tube Oil Gas Pipe

API 5CT J55 K55 N80 L80 P110 Ltc Btc 5-1/2" Casing Coupling Premium Connection Bl-Bc Flush Joint Patent Casing Tube Oil Gas Pipe. We are factory and China Top 10 line pipe manufacturer. We are based in Shandong, China, start from 2014. We have stock of common sizes at hand, so even few ton is accepted. From material to products, we inspect each process to keep good quality. And SGS inspection can be accepted. After you confirm our PI (Proforma Invoice), we will request you to pay. We accept T/T, L/C.