精密铸造对夹式止回阀(弹簧式）
法兰标准：din en1092-1 pn10～pn40 
                   ansi b16.5 class150～class300
结构长度：din3202-k4
公称压力：pn40
工作温度：-25℃～+240℃
材    料：cf8m, cf8, cf3m

our company is mainly produce stainless steel ball valve, check valve, gate valve,

globe valve, y-strainer, fitting, mechanical parts etc. products.

we have got iso9001, ce/ped, atex, ad2000, fire-safe api607 etc. certificates.