... of hollow plug insert. We specialize in producing the YS-009,namely,YS009, which is used for crimping. The YS ... certifications for hollow plug insert.The materials of the YS-009 are H62-H65 brass and 30%glass-reinforced PBT, which ... -009B0;YS-009W0YS-009B1;YS-009W1YS-009BO;YS-009WO CODEYS-009-WOYS-009-BOColorWhite BlackInvention PatentCylinder Hollow Plug Pin Patent no. 1 ...