凸耳橡胶密封铸铁手柄夹紧蝶阀

SWD Salvador Industrial 2" to 16" Hand Lever Manual Worm Gear Wafer butterfly Valve D343w Pn16 Dn40-Dn150不锈钢304 Cf8三偏心硬密封法兰蝶阀 DIN晶圆蝶阀，铸铁法兰Dn400蝶阀手动驱动蝶阀 SUS316L SUS316 SUS304 Dn2 -Dn48 Inch Hard Alloy Double Direction Sealing Pneumatic Three-Eccentric Butterfly Valve 高硅铸铁 阶梯式铁 灰铸铁铸件 V1FS High-Temperature DN100 DN200 Ball Control Pneumatic Valve Aluminum Alloy Butterfly Water Gas Oil Cement Mixing General 手动球墨铸铁阀体蝶阀含氟蝶阀304不锈钢手柄蝶阀 Hot Sale PVDF/PP-H/PVC Full Plastic Handle Clamp Center Line Butterfly Valve for Chemical Industry Water Treatment 观赏铸铁 复制铸铁 金属铸造 生锻铁 DN50 PN10/16/25 Ductile Iron Cast Iron Body Lugged Handle Manual Wafer End Type Butterfly Valve SS304/SS316工业ANSI高压耐腐蚀晶片蝶阀，带橡胶密封件 Donjoy Stainless Steel Fluid Control butterfly Valves DN10-DN300 Powder Pneumatic butterfly Valve for Flour ni-硬铸铁 sg铸铁 熔模铸造