青青草原无码av观看网址_国产精品成人自产拍在线观看6_成Av免费大片黄在线观看_国产综合久久久久鬼色

Insulation reversing valve

PRODUCTS > Melamine is special > Insulation reversing valve

Insulation reversing valve

Patent No: ZL 2011 10413378.0 ZL 2011 20516198.0
Insulation reversing valve is a special valve designed for melamine process system, which needs multi-way switching, insulation operation and preventing crystallization.
The valve is equipped with an insulating jacket, which uses high temperature gas to insulate the valve.