document.writeln('

                                    

00

                          螺纹直通  

00

        对丝 2*1

00

补芯 4*2

00

                     塑钢自锁快速接头

00

        塑钢自锁快速接头 SP+PP20

00

         高档自锁式快速接头  SP+PP  

00

         高档自锁式快速接头  SP+PP  

00

                                    

00

');