circle seal安全阀 5180b-6m 黄铜 teflon? 3/4 in 20-1200 psig
circle seal安全阀 5180b-4m 黄铜 teflon? 1/2 in 20-2400 psig
circle seal安全阀 5180b-3m 黄铜 teflon? 3/8 in 20-2400 psig
circle seal安全阀 5180b-2m 黄铜 teflon? 1/4 in 20-2400 psig
circle seal安全阀 5180b-1m 黄铜 teflon? 1/8 in 20-2400 psig
circle seal安全阀 5120b-8m 黄铜 teflon? 1 in 20-1200 psig
circle seal安全阀 5120b-6m 黄铜 teflon? 3/4 in 20-1200 psig
circle seal安全阀 d559b-6m 黄铜 buna n 3/4 in 0.5-150 psig
circle seal安全阀 d559b-4m 黄铜 buna n 1/2 in 0.5-150 psig
circle seal安全阀 d559b-3m 黄铜 buna n 3/8 in 0.5-150 psig
