wl91h-320p wl93h-320p wk94h-320p wl91h-160p wl93h-160p wl94h-160p wl91h-64p DW3 4 6 8 10 DW12 微量针型调节阀主要产品有：仪表阀门、管件；卡套式阀门、管件；仪表三阀组、五阀组；截止阀、球阀、闸阀、止回阀、蒸汽疏水阀、液压阀门，超高压阀门等