精品国偷自产在线视频九色,日本三线免费视频观看,亚洲精品v日韩精品,99久久久无码国产精品不卡,国产肉体xxxx裸体784大胆

　　Test Pile Uses: mainly used for cathodic protection parameter detection, pipeline management and maintenance is essential in the device, according to the test function along the layout. Test pile can be used for pipeline potential, current, insulation performance test, can also be used for cover leakage and AC and DC interference test.

　　Test pile type: potential test pile; current test pile; casing test pile; insulation connection test pile; sacrificial anode test pile; other test pile; cross point test pile;

　　Test pile model: Φ108 × 2000 × 4mm; Φ108 × 3000 × 4mm; Φ89 × 1800 × 3mm; Φ89 × 1800 × 4mm; Φ114 × 3000 × 4mm;

　　Can also be produced according to customer requirements of different specifications of the test pile.

　　Specifications