Nickel-aluminum bronze ball valve is a kind of valve body, bonnet, valve stem and ball and other parts using B148 C95800, B148 C95500, C63200 or ZCuAl9Fe4Ni4Mn2 and other grades of material cast or forged, commonly used in seawater, sulfate and chloride,
● ED glass delivers amazing color resolution and contrast, even in low-light conditions.● High reflective dielectric coating + phase coating.● Waterproof construction allows carefree use in almost any weather.● Wide field 8x binocular with 42mm objective
Composite thrust bearings has a self-lubricating sliding layer on both sides of a composite core. The sliding layer consists of a seamless tape liner of PTFE blended with high-strength fillers and bonded to a core of continuously woven fiberglass encapsul