The standard product is suitable for vessels of not more than nominal 4MPa seawater piping and piping accessories. Marine flange cast iron straight / right angle shut-off valves GB / T590-93 Marine flange cast iron straight / right angle cut-off valve GB / T591-93 Marine bronze flanged straight / right angle shut-off valves GB / T587-93 Marine bronze flanged straight / Right Angle stop check valve GB / T588-93 Marine forged steel male thread straight / right angle shut-off valve on / off valve Marine bronze male thread straight / right angle shut-off valve on / off valve shut-off valve in the ship straight thread on / off valve Marine steel flanged seawater cut-off valve on / off valve CB / T3196-95 CB / T3197-95 marine stainless steel shut-off valve on / off valve CB / T3942-2002 CB / T3943-2002 Marine bellows valve / Ended return valve CB / T3945 CB / T3946-2002 Marine plug (flange bronze / cast iron plug) GB / T593-93 Marine steel flanged steam valve GB / T1852-93 marine cast iron globe valve box GB / T1853- 94 Marine steel sea valves GB / T2029-1980 Marine bronze sea valves GB / T2030-1980 Marine hydrant GB / T2032-93 marine in line valve GB / T3036-94 marine double eccentric butterfly GB / T3037-94 Marine flange butterfly / double eccentric butterfly valve flange GB / T3036-94 marine spiral butterfly GB / T3036-94 marine pilot / hydraulic valve GB / T3036-94 marine LT type / lug butterfly valve GB / T3036-94 marine stainless steel butterfly GB / T3037 -94 Marine fast closing valves (manual / pneumatic quick-closing valve) quick closing valve GB / T5744-93 Marine flange cast iron rectangular CB304-1992 marine safety valve pressure gauge flow valve CB312-1977 marine observer CB / T422-85 Marine low pressure crude oil filter CB / T425-94 marine iron gate CB / T465-95 marine steel gate CB / T466-95 marine bronze gate CB / T467-95 marine tanker valve CB / T3591-2005 Marine stainless steel valve CB / T3955-2004 Seawater filter CB / T497-94 Marine self-closing valve CB / T601-92 Marine male threaded valve CB3022-1994 Marine manual pressure valve CB / T3191-92 marine level gauge self-closing valve CB / T3265-94 marine breakwater valve / closable vertical breakwater valve / vertical breakwater valve CB / T3475 CB / T3477 CB / T3476-92 Marine air pipe head CB / T3594-94 marine air valve CB / T3656-94 marine bronze plate check valve CB / T3819-99 marine pressure release valve CB / T3843-2000 Marine bronze screw ball valve / Angle / Gate