h44h, h44h-16, h44h-16c, j41, j41h, j41h 16, j41h 16c, j61y, q347f, q347f-16, q347f-16c, z41y, z41y-25, z45, z45x, z45x-16, z45x-16q, 蝶阀|
2020-08-26|
Post by: DanielXxfqgqo
10个常见具体阀门型号的材质
j61y阀门是什么材质 从j61y中只能看出密封面材质是硬质合金，即阀门代号中的y。