JBN-WJ41H波纹管截止阀

JBN-WJ41H国标波纹管截止阀

JBN-WZ41H国标波纹管闸阀

JBN-Y型直流式波纹管截止阀

JBN-德标直角式波纹管截止阀

JBN-美标波纹管闸阀

JBN-锻钢波纹管闸阀

JBN-Y44H/Y型直接作用式波纹管减压阀

JBN-WA42Y波纹管背压平衡全启式安全阀

JBN-CS44H波纹管膨胀式疏水阀

JBN-WJ11H锻钢波纹管截止阀

JBN-WJ61H焊接波纹管截止阀