we are a state-owned military industries group in China, main lines as follows : .astronomy telescopes,binoculars and accessories,large astronomical instruments for observatories,including refractor, reflector, Maksutov Cassegrain,Wide angle,ED,zoom eyepieces,etc. .spotting ...

ATC(Ace Team Casting) has specialized in the casting industry Korea and China since 2002. We have started from cam & groove couplings extended various kinds of couplings, fittings adapters until now. one-stop manufacturing system that enables to manufacture all products mold design ...