Small angle seamless square tube Small angle square tube Cold drawn seamless square tube Cold drawn square tube S235JR Square and rectangular tube Square and rectangular tube seamless square tube E235D square steel pipe S235JR square steel pipe E235B square steel pipe S235JR square steel pipe E355D square steel pipe S355J2 square steel pipe E355C square steel pipe S355J0 square steel pipe square steel pipe E355B square steel pipe Elliptical steel pipe Oval tube S50 hexagonal steel pipe S36 hexagonal steel pipe Special pipes hexagonal pipe Grinding tube 4140 Cylinder rod 1045 Cylinder rod Cylinder rod Automobile crane counterweight cylinder Automobile crane leg deployment oil cylinder Suspension cylinder of automobile crane Truck crane leg oil cylinder Automobile crane telescopic oil cylinder Automobile crane variable speed oil cylinder Automobile lifting oil cylinder Swing oil cylinder for high-altitude operations High altitude operation steering cylinder High altitude operation steering cylinder Leveling oil cylinder for high-altitude operations High altitude operation leg oil cylinder Variable amplitude oil cylinder for high-altitude operations High-altitude work vehicle cylinder Excavator tensioning cylinder Excavator chassis telescopic oil cylinder Excavator angle push hydraulic cylinder Excavator angle push oil cylinder Excavator swing oil cylinder Excavator bulldozer oil cylinder Excavator arm cylinder Excavator cylinder Excavator boom oil cylinder Mechanical bucket oil cylinder Excavator bucket oil cylinder A355 Heat exchanger seamless pipe Heat exchanger seamless pipe X100QO Pipeline pipe and Petroleum Casing Tube X52NO Pipeline pipe and Petroleum Casing Tube X80Q Pipeline pipe and Petroleum Casing Tube X60N Pipeline pipe and Petroleum Casing Tube X42R Pipeline pipe and Petroleum Casing Tube Pipeline pipe and Petroleum Casing Tube Precision cold-rolled seamless tube Precision Cold Drawn Seamless Tube Cold drawn seamless tube Precision cold drawn steel pipe Precision cold-rolled steel pipe 1045 precision steel pipe 4140 precision steel pipe 4130 precision steel pipe 5140 precision steel pipe S355 precision steel pipe A519 precision steel pipe Precision cold drawn tube Precision cold-rolled tube 1045 precision tube 4140 precision tube 4130 precision tube 5140 precision tube S355 precision tube A519 precision tube 1045 seamless pipe 4140 seamless pipe 4130 seamless pipe 5140 seamless pipe S355 seamless pipe A519 seamless pipe ASTM A106 Gr. B seamless pipe 1020 seamless pipe S355JR seamless pipe E355B seamless pipe 1045 seamless steel pipe 4140 seamless steel pipe 4130 seamless steel pipe 5140 seamless steel pipe S355 seamless steel pipe A519 seamless steel pipe ASTM A106 Gr. B seamless steel pipe 1020 seamless steel pipe S355JR seamless steel pipe E355B seamless steel pipe Mechanical structure tube Mechanical structural steel pipe Mechanical structure pipe Flat elliptical tube Elliptical tube ASME SA213 High-pressure boiler tube ASME A213 Heat exchanger seamless pipe ASME A355 Heat exchanger seamless pipe bucket cylinder boom cylinder bucket arm cylinder bulldozer front shovel oil cylinder swing cylinder Angular push cylinder Chassis telescopic cylinder Tightening oil cylinder Amplitude variation cylinder telescopic cylinder support oil cylinder leveling cylinder Steering cylinder Hanging cylinder Outrigger extension cylinder Counterweight oil cylinder hollow piston rod Solid piston rod Pneumatic piston rod Hydraulic piston rod Precision piston rod Hydraulic cylinder piston rod Cylinder piston tube 1045 piston rod 4140 piston rod Chrome-plated piston rod S35 hexagonal pipe S36 hexagonal pipe S50 hexagonal pipe S355JR(E355B) square steel pipe S355J0(E355C) square steel pipe S355J2(E355D) square steel pipe S235JR(E235B) square steel pipe S235JR(E235D) square steel pipe Seamless square and rectangular tubes Welding square and rectangular tubes Cold-drawn square and rectangular tubes Small-angled square and rectangular tubes A519 precision seamless steel tubes ASME SA106 High-pressure boiler tube ASME SA210 High-pressure boiler tube SA213 High-pressure boiler tube ASME SA335 High-pressure boiler tube BR-X42R Pipeline pipe and Petroleum Casing Tube BN-X60N Pipeline pipe and Petroleum Casing Tube BQ-X80Q Pipeline pipe and Petroleum Casing Tube BNO-X52NO Pipeline pipe and Petroleum Casing Tube BQO-X100QO Pipeline pipe and Petroleum Casing Tube ASTM SA-106B Mechanical structure tube 1020 Mechanical structure tube 1045 Mechanical structure tube 4140 Mechanical structure tube 4130 Mechanical structure tube 5140 Mechanical structure tube S355 Mechanical structure tube A519 Mechanical structure tube ASTM A106 Gr.B Conveyor pipe 1020 Conveyor pipe S355JR Conveyor pipe E355B Conveyor pipe High-precision honing tubes Oil cylinder honing tube Cylinder honing tube 1045 precision seamless steel tubes 4140 precision seamless steel tubes 4130 precision seamless steel tubes 5140 precision seamless steel tubes A519 precision seamless steel tube S355 precision seamless steel tubes Precision Honing Tube Honing Pipe Factory Cylinderhylsa Hydraulcylinderfat Kallt ritat stålrör Kallt stålrör kallt rör 20 cm precisionssömlöst rör Precision Bright Tube Exakta sömlöst stålrör 40CR Precision Tube 40CR Precision Steel Pipe 20CR Precision Tube 20CR Precision Steel Pipe 42crmo fäströr 42crmo Precision Foted Tube Sliprör Precisionsliprör Kallt ritat sliprör Hydraulcylinderrör Petroleumsprickrör Petroleumsprickor Q355B stålrör Q355B sömlöst stålrör Q355B sömlösa stålrör 20 # sömlöst rör 20 sömlöst stålrör 20# sömlöst stålrör Sömlösa rör för byggmaskiner Stålrör Sömlösa stålrör för byggmaskiner åtta-sidiga stålrör Åttkantig rör Åttkantig sömlös rör Åttkantig stålrör Hexagonalt stålrör Hexagonalt rör Hexagonalt sömlöst stålrör hydraulcylinder Precisionssömlös rör Precisionsstålrör Finslipad Specialformad rör Specialformade rör Specialformad stålrör Specialformade rör Specialformad rör 27simn cylinderrör cylinderrör GB8163 stålrör 45# stålrör 20# stålrör Grävmaskinoljecylinder 27Simn Shield Machine oljecylinder Sköldmaskinoljecylinder Sköld maskincylinder 27Simn Rotary Drilling Cylinder Q345B roterande borrcylinder Roterande borrcylinder 27Simn Crane Hydraulic Cylinder 16 mn kran hydraulcylinder SAE1045 grävmaskin hydraulisk cylinder SAE1020 grävmaskin hydraulisk cylinder Hydraulcylindrar för grävmaskin Grävmaskin hydraulisk cylinder Jordbruksmaskiner hydraulisk cylinder Hydraulcylinder Mekanisk hydraulisk cylinder Teknisk oljecylinder A106C Högtemperatur sömlöst rör A106C högtryckssömlöst rör A106C sömlöst rör SA106B högtryckssömlöst rör SA106B Högtemperatur sömlöst rör SA106B sömlöst stålrör 12cr1movg högtryckspannrör 20g sömlöst rör 20 g högtryckspannrör precisionsrör precisionsstålrör 25 mn precision fina rör 27Simn Precision Honed Tube 16mn finade rör 16 mn precision finslipad rör 45# Honed Tube 45# Precision Honed Tube Precision Foted Tube 20# Honed Tube 20# Precision Honed Tube 27Simn Fink Tube 25 mn finade rör Finslipad rör Sömlös petroleumrör Petroleumstålrör Petroleumsprickrör Petroleumsprickor sömlöst rör Gödningsstålrör SA333 högtryckspannrör SA106 Högtryckspannrör Högtryckspannaugn Sömlösa rör för kärnkraft Kärnkraftsstålrör Kärnkraftsrör Flytande stålrör Fluid sömlöst stålrör Sömlös fluidrör Strukturellt sömlöst stålrör stålstålrör Strukturell sömlös rör Sömlös gödningsrör Gödningsrör Gödselspecifikt sömlöst rör Sömlös gascylinderrör Stålrör för gascylindrar Gascylinderstålrör GB3087 pannrör GB5310 högtryckspannor högtryckspanna