两通旋塞阀

进口法兰高压旋塞阀,进口不锈钢高压旋塞阀

x43h,x43f型pn150(lb)~900(lb)钛旋塞阀

新乡铸铁三通旋塞阀, 铸钢衬氟旋塞阀,法兰旋塞阀

供应api3寸涡轮高压旋塞阀(plug valve)图