带保护罩球阀BTQ31F-63P 63R 1-5/16
¥200带保护罩球阀BTQ31F-63P 63R 1-5/16
¥200防爆电动球阀Q941H-16C 硬密封蝶阀
¥2800PN16电动球阀Q941F-16 防爆球阀
¥1200天然气法兰球阀 Q41F-16C DN80
面议带保护套球阀CSQ31F-63P
面议燃气球阀RQ41F-16C 铸钢法兰
面议制冷专用球阀Q31F-63P
面议不锈钢法兰球阀 Q41F-16P Q341F-16P
面议不锈钢球阀Q41F-64P DN80
面议不锈钢球阀Q41F-16P|Q41F-25P|Q41F-40P
面议球阀Q41F-40P DN25 化工部标准
面议带保护罩二片式内外丝扣球阀 Q31F-63P
面议