tight in tolerance, +/-0.02mm is possible Indeed manufacturer high quality, competitive price 316L, 17-4PH tiny metal parts, material can be stainless steel, tungsten, ferros alloy,complex shape, tight in tolerance is possible.all product is customized product.We are indeed manufacturer, Our plant name is DONGYANG WEITE NEW MATERIAL CO., LTDOur distributor name is HANGZHOU YUHOMBO TRADE CO., LTD