... effective 3.special design, 4.lots of types Specifications of conical twin-screw and barrel: 45/90, 45/97, 50/103, 55/110 ... for all kinds of appended fiberglass, plastic and PPA, PPO, PPS, LCP, magnetism powder and PC special engineering plasticComponents of alloy powder ... of barrel (material of powder outlet is Cr12MoMV, vacuum quenching)and screw (powder output is treated by alloy), the using lifespan ...