J19H/W-16P压力表内螺纹针型阀

J49H/W-16P压力表法兰针型阀

QFF3-16P三阀组针型阀

JJM8-16P不锈钢压力表针型阀

JJM1-16P压力表针型阀

GMJ11F/H-16P高密封取样阀

CJ123H-16P多功能针型阀

J61Y/J63Y-16P高温高压针型阀

J61Y-16P焊接式针型阀

J48H/W-16P法兰式针型阀

J24W-16P外螺纹角式针型阀

J21W-16P外螺纹针型阀