... stamping,punching,bending,drilling,welding 2.bending parts according to drawing Qingdao Lianhai Hydraulic Machinery Co.,Ltd is the ... in China.We can use the advanced technology of machining to manufacture,for instance,CNC Hydraulic bending,Foundry,Pressing, ... drilling,welding...3.metal casting parts machined according to drawing applied to various industries4.ODM/OEM serive5.ISO certificate: metal ...