Produsen flensa baja paduan ANSI, ASTM A182 F5, F9, F11, F12, F22, F91, WN Flensa, LWN Flensa, Flensa SW, Flensa Berulir, Lentak Buta, Flensa Soal, RP/FACHOUS, LATI PLATE, RF, FF, RTJ, RTJ, THAGLOUS THEGLOUS, ZHOUPLE, ZHOUPZ, RF, RTJ, RTJ, RTJ CO. Ltd.