Cangzhou zhongyi valve co., ltd.

DINPN16 two piece ball valve flange. The two piece of clip type flange connection flange design, accord with DINPN16 standard. Stem seal with butterfly spring type str

ANSI 150LB two piece ball valve flange. The two piece of clip type flange connection flange design, accord with ANSI 150LB standard. Stem seal with butterfly spring ty

DINPN16 two piece ball valve flange. The two piece of clip type flange connection flange design, accord with DINPN16 standard. The stem seal gland structure and increa