少妇无码太爽了视频在线播放,h动画在线看,一区二区三区无码高清视频,а√最新版资源在线官网

 Powder metallurgy parts are widely used in automobile, toys, tools, household appliances and general machinery. They include two large categories, mechanical parts and oil-retaining bearing.

The advantages of powder metallurgy parts:

Full automatic mass production with much lower cost;

Using for a long time without oil feed;

Applicable to low and high speed, possessing good quality in lubrication and antifriction;

Precise measurement and fine surface;

Steady rotating with no noise;

Long mechanical service life.

Materials: Fe, Cu Alloy Fe. Yankees FN, Fasten (SMF) CuSn10 FLN or Copper Tin, SUS (303,304) Stainless Steel, etc.

Weight: from 0.01 gram to 500 grams.

Order Quantity: Medium and Large series

Production Equipments: Hydraulic press; Sintering furnace; Hardening furnace; Cryogenic box; Vibration polishing machine; Shot blasting machine; Cleaning machine; etc.

Quality Control: Chemical analysis; Iron powder analysis; Mechanical properties for tensile strength, yield stress and elongation; Hardness testing; Impact testing; Coordinate measuring machine (CMM); Oil rate measuring; etc.

Surface Treatment: Shot blasting; Polishing; Steam treatment; Dacromet treatment; Powder Coating; Painting; Passivation; Zinc / Chrome / Nickel Plating; etc.