We are Fuzhou Zhengyin Metalworks Co.,Ltd. we are supplying:

1, Camlock couplings (cam and groove coupling) 
2, Guillemin coupling, 
3, Safety clamp (Norm DIN2817)
4, Tank truck coupling (Norm DIN28450)

We also supply accessories as followings:

a) Bauer type coupling
b) Universal crowfoot coupling (US type and European type)
c) Sand blast coupling
d) Double bolt clamp
e) T-bolt clamp
f) Spiral clamp
g) Foot valve and strainer
h) Ground joint coupling (steam hose coupling)
i) Pin-lug hose shank
j) Whipcheck safety cable
k) King combination nipple and hose mender

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