Author: nitri denitri

Conical Twin Screw Barrel The compression ratio of screws can be designed according to different products and mixtures. Technical Parameter: Hardness After Hardening & Tempering:HB280-320 Nitrided hardness: 950-1100HV Nitrided layer depth:0.50-0.80mm Nitrided brittleness: Less than 2 level Zhejiang Jingjin Machinery Co.,Ltd was established in 1988,The company covers an area of 30,000 square meters,with more than…