switch Pull-Out Faucet,Pull Out Kitchen Faucet,Pull Out Faucet,Pull Out Shower Handle Heshan Janno Kitchen and Bath Technology Co.,Ltd , https://www.janno-ks.comThe quality of pipelines and fittings should comply with current standards;
The valve installation should be upright and the switch should be flexible;
After the water pressure test, all pipelines, valves and joints shall have no water seepage or water leakage.