冶金矿产：DN1以上的管件采用沟槽式管接头，在管体内压出1.5～5.5mm的槽，确保管体和管件之间不会轴向脱开，沟槽管接头的螺杆和螺母拧紧后，在密封圈的包裹下确保接头处无渗漏。合管端面特殊密封衬塑复合钢管和衬塑玛钢管件之间、内复不锈钢净水管和不锈钢管件之间采用螺纹联接。当螺纹拧紧时，管体端部和硅橡胶密封圈相接触，这样，和流体接触的只是聚塑料、不锈钢、聚塑料和硅橡胶，确保了整个管道系统的耐腐蚀性，确保了管道系统可以输送纯净水。
英标H型钢规格表：
UB127x76x13 UB152x89x16 UB178x102x19
UB203x102x23 UB203x133x25 UB203x133x30
UB254x102x22 UB254x102x25 UB254x102x28
UB254x146x31 UB254x146x37 UB254x146x43
UB305x102x25 UB305x102x28 UB305x102x33
UB305x127x37 UB305x127x42 UB305x127x48
UB305x165x40 UB305x165x46 UB305x165x54
UB356x127x33 UB356x127x39 UB356x171x45
UB356x171x51 UB356x171x57 UB356x171x67
UB406x140x39 UB406x140x46 UB406x178x54
UB406x178x60 UB406x178x67 UB406x178x74
UB457x152x52 UB457x152x60 UB457x152x67
UB457x152x74 UB457x152x82 UB457x191x67
UB457x191x74 UB457x191x82 UB457x191x89
UB457x191x98 UB533x210x82 UB533x210x92
UB533x210x101 UB533x210x109 UB533x210x122
UB610x229x101 UB610x229x113 UB610x229x125
UB610x229x140 UB610x305x149 UB610x305x179
UB610x305x238 UB686x254x125 UB686x254x140
UB686x254x152 UB686x254x170 UB762x267x147
UB762x267x173 UB762x267x197 UB838x292x176
UB838x292x194 UB838x292x226 UB914x305x201
UB914x305x224 UB914x305x253 UB914x305x289
UB914x419x343 UB914x419x388 UB1016x305x222
UB1016x305x249 UB1016x305x272 UB1016x305x314
UB1016x305x349 UB1016x305x393 UB1016x305x415
UB1016x305x438 UB1016x305x494 UB1016x305x584
英标H型钢UC系列理论重量表：
UC152x152x23 152.4x152.2x5.8x6.8
UC152x152x37 161.8x154.4x8x11.5
UC203x203x46 203.2x203.6x7.2x11
UC203x203x86 222.2x209.4x12.7x20.5
UC254x254x73 254.1x254.6x8.6x14.2
UC254x254x89 260.3x256.3x10.3x17.3
UC254x254x167 289.1x265.2x19.2x31.7
UC305x305x97 307.9x305.3x9.9x15.4
UC305x305x118 314.5x307.4x12x18.7
UC305x305x137 320.5x309.2x13.8x21.7
UC305x305x283 365.3x322.2x26.8x44.1
UC356x368x129 355.6x368.6x10.4x17.5
UC356x368x153 362x370.5x12.3x20.7
UC356x368x177 368.2x372.6x14.4x23.8
UC356x368x202 374.6x374.7x16.5x27
UC356x406x235 381x394.8x18.4x30.2
UC356x406x393 419x407x30.6x49.2
UC356x406x592 465x421x45x72.3
UC356x406x744 498x432x55.6x88.9
UC356x406x990 550x448x71.9x115
UC356x406x1299 600x476x100x140
英标型钢：
PERT管材已具备了相对完备的标准体系，有德国标准，我国建设部标准和ISO标准。在国家的推广作用下耐热聚乙稀PERT管材很有发展潜力。下面将建设部推荐的PERT和XPAP及PPR、PEX做一比较交联铝塑复合管XPAP不透氧，抗外压强度高，因其是五层结构在地暖安装施工中弯曲时容易焊缝脱开。另外热熔胶的熔点接近11度，无法进行11度试验；受外界干扰有瞬间高温出现，容易脱层；又加之价格较高，推广应用较难。
英标H型钢UB610*305*149