... 2.Steady quality 3.Competitive price 4.Good quality seals Pressure Relief valve Details: 1. Material: WCC,WCB, 8620 2. ... Processes: Sand casting 3. Testing pressure of products: 16 bars 4. Surface finish: Polishing, oiled (rust ... chamber, varilus mould machine, standing machine Tool, machine tools, universal miller, standing drill machine, bench drill machine, dry sand mix ...