... systems. This guarantees high quality, while providing a high volume of production to suit your needs.1:Our ... ,1215) ,Alloy steel ( SCM435,10B21, C10B33) ,and a variety of stainless steel material(SUS201,202,301,302,303 ... 8years .And we have formal production line and a full set machine. And cooperate with our ... then we can confirm the delivery is under control;(3)survive,we see the quality and survive ...