J41B-16C/2/40C氨用截止阀GMJ41B
面议J41B-16C/2/40C氨用截止阀GMJ41B
面议GMJ41H-16C/25C铸钢截止阀GMJ41H
面议J41H-16蒸汽法兰截止阀GMJ41H-16C
面议YJ41W-16T/25T/40T黄铜氧气法兰截止阀GMYJ41W-16T/25T/40T
面议YJ41W-16P/25P/40P不锈钢氧气截止阀GMYJ41W-16P/25P/40P/64P
面议J41H-25C/16C/40C/64C/100C国标铸钢截止阀GMJ41H-25C/16C
面议NKJ41H真空截止阀GMNKJ41H
面议J11W-16P不锈钢内螺纹美标截止阀GMJ11W
面议J61Y-320I J61Y-200I 250铬钼钒钢自密封高温高压焊接截止阀J61Y-63I
面议J61Y-P54铬钼钢自密封高温高压焊接截止阀J61Y-P54
面议J61H--100C/160C/200C/250C铸钢自密封高温高压焊接截止阀J61Y/H
面议J41H-16C/25C/40/64C/100C法兰铸钢截止阀蒸汽高温导热油
面议