2933399073 Chinese tariffs HS code 4- (N-phenylamino) piperidine and its salts, 1-tert-butoxycarbonyl-4- (N-phenylamino) piperidine and its salts, N-phenyl-N - (4-piperidinyl) propanamide and its salts
4- (N-phenylamino) piperidine and its salts, 1-tert-butoxycarbonyl-4- (N-phenylamino) piperidine and its salts, N-phenyl-N - (4-piperidinyl) propanamide and its salts