I-TH-Valve Nantong yasungulwa ngo-1965. Sikhethekile ekukhiqizeni i-valve yesango, i-globe valve, i-valve yokuhlola, i-valve yebhola, ama-valve e-cryogenic/okushisa okuphansi, isihluthulelo, i-plug valve, enobubanzi obusuka ku-2 "kuya ku-72" kanye nesigaba sokucindezela. kusuka ku-150LB kuya ku-4500LB.I-TH-Valve Nantong ibilokhu ithumela kwamanye amazwe kusukela ngo-1989, futhi kancane kancane yathola izitifiketi ze-API 6D, API 600, API 6FA, API 607, API 6FD, PED/CE, TR-CU kanye ne-ATEX yemakethe yaseYurophu, i-CRN yaseCanada njll. kungakhathaliseki ukuthi ukuphi emhlabeni, sijabule kakhulu ukukunikeza ngemikhiqizo yekhwalithi namasevisi ochwepheshe.