... .For laying indoor, tunnel, underground and canal. Unable to bear external mechanical pulling force and pressure during laid.(ZR)YJV22or(ZR) ... difference of level, able to bear mechanical pressure and moderate pulling force.(ZR)YJLV42or(ZR)YJLV43(ZR)YJLV42or(ZR)YJLV43( ... difference of level, able to bear large mechanical pressure and pulling force.Henan Taifa Cable Co., Ltd obtained CIS certificate, SGS ...