Z41Y-100IZ41Y耐高温铬钼钢闸阀

Z641H-16CZ641H气动闸阀

RVHXRVHX明杆弹性座封闸阀

DSZ41H~DSZ44HDSZ41H~DSZ44H法兰水封闸阀

Z15WZ15W不锈钢丝口闸阀

Z15TZ15T内螺纹暗杆楔式闸阀

RVCXRVCX埋地式弹性座封闸阀

JIS日标闸阀JIS日标闸阀

Z23XZ23X钻井高压泥浆闸阀

BZ41H、BZ41W、BZ41YBZ41H、BZ41W、BZ41Y 保温夹套闸阀

CYZ41HCYZ41H差压式油密封闸阀

DZ61Y型-DZ61Y型低温直通式节流阀