韩国丰满的少妇2,边摸边吃奶边做的视频,男人呻吟双腿大春药开漫画

26
2019-09

Where is the hydraulic reinforced extrusion machine use

　Hydraulic steel extrusion machine building steel hot forging connection method: in to join two end up building steel seamless steel tube, then using portable four-column hydraulic press, extrusion waterproof casing deformation, the second root reinforcement lap as a body of a sleeve connection mode, this method apply to industrial and civilian building, content, multi-storey building, foundation engineering, etc., all kinds of concrete structure of phi is 20 ~ 40 grade I, ii grade lap joint of steel bars and reducing lap, light round bar connection can join the longitudinal, level, and all slope Angle of building steel, its connection head compressive strength, bending rigidity, ductility symmetry with the original material very much...
25
2019-09

KRA - 20 portable hydraulic punching machine have what features

KRA - 20 portable hydraulic punching machine product features: suitable for steel, iron, copper, aluminum, i-steel, molding just punching operation, such as small volume, light weight, energy saving and quick punch...
25
2019-09

RC - 16 a portable bar cutting machine have what effect

RC - 16 a portable bar cutting machine product features: apply to the construction site bar cutting. This product is light weight, small size, easy to carry. No spark cutting process, no dust, safe and reliable...
25
2019-09

How portable hydraulic bending machine maintenance and maintenance

1、Hydraulic circuit
1）Weekly check the tank oil level, such as hydraulic system also should check after repair, oil level is lower than the oil line center should include the hydraulic oil；
2）New work 2000 hours after the oil should be replaced, should be replaced every work of 4000 ~ 6000 hours after the hydraulic oil, oil change every time, should be cleaning tank...