J48W/H-160P/C/R法兰式针型阀
H14W-100P内螺纹高压..
J12W-64P内外螺纹针型阀
J21W/H-320P/C/..
YZG11-1温度计直行连接头
J41W/H-16P/C/R..
YZG14-5内外螺纹转换接头