PZ44H PZ48H供应goole排污阀PZ44H PZ48H

YJ41W供应goole铜氧气截止阀YJ41W

BJ45W供应gooleY型保温截止阀BJ45W

PZ73H/X供应goole浆料阀PZ73H/X

FDZ45H/Y/X防盗闸阀

FB645Y气动放料阀FB645Y

J41H/J41W北京式锻钢法兰截止阀J41H/J41W

CARX CARX复合式排气阀

Y14H/y不锈钢直接作用波纹管式减压阀

Y14HY14H波纹管减压阀

H74WH74W薄饼式止回阀

F43X手动眼镜阀F43X