About Us
Seventeen years ago, worked in Dalian brasswind manufactory and learned how to make rotary valve brass-instruments and master taught how to enjoy this job into producing and sound in the life. after 10 years Craftsmanship and Experience, built my own factory –SIERMAN in LangFang, why to call ‘’Sierman’’- in the Chinese semantic means-it’s a FantasticExtension….we worked closer with musician and liste...
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