北京环宇顺通科技有限公司为COPAL一级代理商，COPAL常用产品都用现货，COPAL电位器型号有ST-2,ST-32,ST-4,ST-5,ST-7,SM-3/31,SM-42/43,RJ-4,CT-6-FT-63,RJ-6,RJ-13,TM-7,RJ-5,CT-20,CT-94,CT-9,RJ-9,Λ-6,Λ-13,μ-8,κ-9,μ-11,J40S,J45S,J50S,M22L10,JT22,JT30,JP-16,JP-30,JC30S,JC40S,JC22E,JC22S,CRV16,MC1003,JC10,JCL,M-22S10,M-22E10,M-1303,M-1305,JP16B,JP30B,CA-10等电位器，还有其他编码器，电机，风扇，开关等原件
