German Siemens and ThyssenKrupp may sell relevant core technology to China, which owns the first commercially operated maglev line.
the companys sell many products to china
( z1 sell :ARG0 ( z2 company ) :ARG1 ( z3 product :quant ( z4 many ) ) :ARG2 ( z5 country :name ( z6 name :op "China" ) ) )