Halogen-free special screw barrel -JX engineering materials with special material: screw assembly can be used separately: full alloy series, double alloy series; dual-alloy cylinder selection series. Process: screw barrel can be used separately as a whole fully hardened, screw the whole spray alloys, cast double alloy cylinder bore. Adhesion strength: 10000psi above surface finish: Screw surface is less than 0.04um surface hardness:. HRC62-70 degrees. Halogen-free special screw barrel group (with high abrasion, ultra-corrosion, high temperature high pressure) Scope: Halogen-free plus fiberglass material, FR52G30NH BK337 high temperature flame retardant nylon. Applicable products: electronic components, electrical fittings, household appliances computer plugs, automotive parts. If you like long fingers, how to meet the different needs of users? Jinxin never compared to just break their own people! We have been working hard! Every year, every day, we are making progress! We lead, others follow. Jinxin - to create a new era of Chinese runner. ------ Select Jinxin production falters try? Give me a trust, but also you are very responsibility! NOTE: Because the different needs of each product, so the product specifications vary as those interested can call directly to my company, the company will have professionals to serve you.