... and doors, telecommunication ducts, PE fuel gas, etc.2.Details: SpecificationOutside diameter(mm):20--6300mmUse:Water supplyColorBlackStandardISO/ ... +0.52.5+0.5Φ756.8+1.15.6+0.94.5+0.73.6+0. ... 62.9+0.5Φ908.2+1.36.7+1.15.4+0.94.3+0.73. ... 1+1.36.6+15.3+0.84.2+0.7Φ12511.4+1.89.2+1.47.4+1 ... 68.3+1.36.7+1.15.4+0.9Φ16014.6+2.211.8+1.89.5+1 ... .8+10.141.2+8.233.2+6.626.7+5.321.4+4.2Φ63057.2+11.446.3+ ...