JINGAI ALLOY PRECISION CASTING CO.,LTD Yaluo screw is specialized in manufacturing precision plastic screw and barrel.Over the years,the main products are Nitriding screw and barrel,bimetallic alloy screw and barrel,stainless steel screw and barrel.fully hardened screw, high-speed tool steel screw and barrel which will be used at extruder and injection molding machine. They are used at extruder,such as single screw barrel,parallel twin-screw barrel,concial twin-screw barrel which used in the production plate,sheet,pipe,blow molding machine,blown film machine,the feed machine,packaging machine,foam machine,granulator,wove n wire drawing machine,wire and cable,chemical fiber.etc. JINGAI ALLOY PRECISION CASTING CO.,LTD screw main design:gradient type,mutant,PM separated type,flow divide type,barrier type,vacuum exhaust type,combination,flexibility,high speed type,ect. Material:High quality 38 crmoala,High quality SACM645; High quality SKD11; High quality SKD61; High quality meterials,such as 9 cr18mov after quenched and tempered,forming.the surface can be heating treatment like nitride plating hard flipping and spray weld hard alloy,etc.Product has high wear restance,corrosion resistance and long service life,etc. Widely used in all kinds of rubber and plastic raw materials,such as: PE， PP，PVC， PS,ABS,PA,POM,PC,PSV,PTFE,PVR,PR,UP,PEC,PF,VF,MP,PMMA,PET,PBT, PPS,MPPO,PI,LCP,and so on Appeared to many machines provide a complete set of screw and barrel,for example Engel,Davis-standard,Weber,Bersorff,Wi ttann Battenfeld,Cincinnati,Nanrong,Haitian, Chenhsong,Japan’s Sumitomo,sumida,liansu,horng chii,major steel,yuan feng,male mold plastic machienery company.