Cina, API 6D, segel kembar, orbit, dual ngembangna, DBB colokan klep, Umum klep, Pabrik, Pabrik, Harga, Flanged, RF, RTJ, Dua lembar, tilu lembar, PTFE, RPTFE, Metal, korsi, bore pinuh, ngurangan bore, tekanan tinggi, suhu luhur, bahan valves gaduh baja karbon, stainless steel, A216 WCB, A351 CF3, CF8, CF3M, CF8M, A352 LCB, LCC, LC2, A995 4A.5A, Alloy 20, Monel, Inconel, Hastelloy, Aluminium Perunggu jeung alloy husus lianna.Tekanan ti Kelas 150LB, 300LB, 600LB, 900LB, 1500LB, 2500LB