Potentiometers and Variable Resistors 220K 330K 470K 1M欧姆电阻6mm 1A 2W电位器可变电阻VR电阻DIY电子WTH118 1K 4.7K 10K 47K 100K
Stainless Steel Pipes ASTM A36 A53 A192 Q235 Q235B 1045 4130 Sch40 10mm 60mm Carbon Steel Construction Pipe Tube for Oil and Gas Pipeline Construction