... of hand valve series,such as 4H,4R,SH,3R,R5. Our company offers various of hand valve series ... ,such as 4H,4R,3R,R5.Our company offers various of hand valve series ... ,such as 4H,4R,SH,3R,R5.The hand pulled valve belongs to manual chang ... 40 -5~5010 ≥200*The spec data of 4R,3R series.Type4R210-064R210-083R210-063R210-08Working mediumCleaned AirPort SizeAir ...